# concise mathematics class 7 ratio and proportion

(iii) 6 1/4: 12 1/2. 40,000 respectively. Answer, Two poles of different heights are standing vertically on a horizontal field. Answer, A plot of land, 600 sq m in area, is divided between two persons such that the first person gets three-fifth of what the second gets. The ratio between two numbers is 5 : 9. Find the numbers, if their H.C.F. Find the numbers. 3,150 in the ratio of their ages. If x: y = 4: 7, find the value of (3x + 2y): (5x + y). Selina Concise Mathematics - Part II Solutions for Class 10 Mathematics ICSE, 7 Ratio and Proportion (Including Properties and Uses). Selina Solutions Concise Maths Class 10 Chapter 7 Ratio and Proportion Exercise 7 (A) In this exercise, the concept of ratio, increase (or decrease) in a ratio, commensurable and incommensurable quantities and composition of ratios are majorly tested. Rs. The population of a town is ’ 50,000, out of which males are $$\frac { 1 }{ 3 }$$ of the whole population. Answer: Let the first number be 5x and second number be 9x H.C.F. (i) the weights of metals A and B in the alloy. Find detailed video answer solutions to CONCISE Mathematics Middle School - 7 Ratio and Proportion Including Sharing in a Ratio) questions taught by expert teachers. Trigonometric ratios of 90 degree plus theta. 400. Two numbers are in the ratio 10 : 11. Our Solutions contain all type Questions with Exe-6 … Access free tutor videos and make learning fun on LIDO learning. Question 5. of 5x and 9x = Largest number common to 5x and 9x = x Given H.C.F. Question 1. 1080. Access free … Question 1. At a particular time, the ratio between the lengths of their shadows is 2 :3. Solution: Question 2. Ratio and Proportion Exercise 6A – Selina Concise Mathematics Class 7 ICSE Solutions. Solution: Sum of the ratio terms =(1+3+4)=8 (10) What number must be added to each term of ratio 9 : 16 to make the ratio 2 : 3? Answer, is divided between A and B in such a way that A gets half of B. Check the below NCERT MCQ Questions for Class 6 Maths Chapter 12 Ratio and Proportion with Answers Pdf free download. Find each angle. Trigonometric ratios of 180 degree plus theta. In a class, the ratio of boys to the girls is 7:8. Two numbers are in the ratio 5 : 7. Solution: Find detailed video answer solutions to CONCISE Mathematics Middle School - 7 Ratio and Proportion Including Sharing in a Ratio) Exercise 6B) questions taught by expert teachers. The angles of a triangle are in the ratio 3 :2 : 7. Answer: Total weight of A and B metals = 10 gm A’s weight = 7.5 gm B’s weight = 10 – 7.5 = 2.5 gm, (i) Ratio between A and B = 7.5 : 2.5 = $$\frac { 75 }{ 10 }$$ : $$\frac { 25 }{ 10 }$$ =3:1, (ii) Ratio between B and total alloy = 2.5 : 10 = $$\frac { 25 }{ 10 }$$ : 10 ⇒ 25 : 100 = 1 : 4. Question 4. 25000 B’s investment = Rs. Question 12. Answer: Total population = 180,000 Population of males = $$\frac { 1 }{ 3 }$$ of 180,000 = 60,000 ∴ Population of females = 180,000 – 60,000 = 120,000 Ratio of females to whole population = 120,000 : 180,000 = 2:3. Answer. You can download the Selina Concise Mathematics ICSE Solutions for Class 7 with Free PDF download option. ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 6 Ratio and Proportion Ex 6.2 July 16, 2020 by Prasanna Leave a Comment ML Aggarwal Class 7 Solutions Chapter 6 Ratio and Proportion Ex 6.2 for ICSE Understanding Mathematics acts as the best resource during your learning and helps you score well in your exams. (ii) the weight of metal B and the weight of the alloy. Answer: A’s age = 6 years 8 months = 6 x 12 + 8 = 72 + 8 = 80 months B’s age = 7 years 4 months = 7 x 12 + 4 = 84 + 4 = 88 months ∴ Ratio between them = 80 : 88 = 10 : 11 Amount = Rs. $$\frac { 810 x 4 }{ 3 }$$ = Rs. 270 x 4 = Rs. Find the fourth proportional of Solution: Question 3. Learn Insta try to provide online math tutoring for you. Selina Concise Mathematics Class 7 ICSE Solutions. Simple Interest. Trigonometric ratios of 270 degree plus theta. Are the following numbers in proportion: (i) 32, 40, 48 and 60 ? is 168, find the numbers. The exercise problems pertain to these topics and are very important for exams. 14,400 in a year. Answer: Ratio between the prices of scooter and a refrigerator = 4:1 Cost price of scooter = ₹45,000 Let the cost of scooter = 4x Cost of refrigerator = 1x According to condition, Cost of scooter > Cost of refrigerator ⇒ 4x- 1x = 45000 ⇒ 3x = 45000 x = $$\frac { 45000 }{ 3}$$ ⇒ x = ₹15000 .’. 25,000; Rs. Find the share of each out of a profit of Rs. We have provided Ratio and Proportion Class 6 Maths MCQs Questions with Answers to help students understand the concept very well. Question 8. 40,000 respectively. This will clear students doubts about any question and improve application skills while preparing for board exams. Answer, The ratio between two quantities is 3 : the first is Rs. Answer: Given, Ratio in two numbers = 4:7 and their L.C.M. If x: y – 5 :4 and 2 : x = 3 :8, find the value of y. Answer, Two numbers are in the ratio 10 : 11. The ages of two boys A and B are 6 years 8 months and 7 years 4 months respectively. We provide step by step Solutions of Exercise / lesson-6 Ratio and Proportion for ICSE Class-7 Concise Selina Mathematics. What part of the whole class are girls. Answer: Length of field (l) = 100 m Breadth (b) = 80 m ∴Perimeter = 2 (l + b) = 2 (100 + 80) m = 2 x 180 = 360 m (i) Ratio between length and breadth = 100 : 80 = 5 : 4 (Dividing by 20, the HCF of 100 and 80), (ii) Ratio between breadth and its perimeter = 80 : 360 = 2 : 9 (Dividing by 40, the HCF of 80 and 360). 810, find the second. Check whether the following quantities form a proportion or not ? Selina Concise Mathematics class 7 ICSE Solutions – Ratio and Proportion (Including Sharing in a Ratio) ICSE Solutions Selina ICSE Solutions ML Aggarwal Solutions APlusTopper.com provides step by step solutions for Selina Concise ICSE Solutions for Class 7 Mathematics. Selina Class 7 Maths ICSE SolutionsPhysicsChemistryBiologyGeographyHistory & Civics. Trigonometric ratios of 180 degree plus theta. 3,150 in the ratio of their ages. 15,000 atid Rs. (2) If 8 ball pens cost Rs. = 16 ⇒ x = 16 ∴Required numbers = 5x and 9x = 5×16 and 9×16 = 80 and 144. Selina solutions for Concise Maths Class 10 ICSE chapter 7 (Ratio and Proportion (Including Properties and Uses)) include all questions with solution and detail explanation. Question 22. Express each of the given ratio in its simplest form : Divide 64 cm long string into two parts in the ratio 5 : 3. Answer: A’s investment = Rs. Answer, The population of a town is ’ 50,000, out of which males are  of the whole population. 720 is divided between x and y in the ratio 4:5. Download Class 7 Concise Mathematics ICSE Solutions – Free PDF Chapter-wise. All the solutions of Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - Mathematics explained in detail by experts to help students prepare for their ICSE exams. 1650. 40, how much will 20 ball pens of the same kind will cost? is 16. Total amount = Rs. Solution: (i) Let’s assume … Find the numbers. Answer, Two numbers are in the ratio 5 : 7. Question 6. Answer: Ratio between boys and girls = 7:8 Sum of ratios = 7 + 8 = 15 ∴ Girls are $$\frac { 8 }{ 15 }$$ of the whole class. Question 1. Find the numbers, if their H.C.F. Answer, The ratio between two numbers is 5 : 9. Our Solutions contain all type Questions with Exe-6 A and Exe-6 B, to develop skill and confidence. We provide step by step Solutions of Exercise / lesson-6 Ratio and Proportion for ICSE Class-7 Concise Selina Mathematics. Question 17. Proportion Exercise 12C – Selina Concise Mathematics Class 6 ICSE Solutions. Express each of the given ratios in its simplest form: (i) 22: 66. APlusTopper.com provides step by step solutions for Selina Concise ICSE Solutions for Class 7 Mathematics. 320 y’s share =$$\frac { 5 }{ 9 }$$ of Rs. Ten gram of an alloy of metals A and B contains 7.5 gm of metal A and the rest is metal B. Basic concepts of ratio and proportion studied in earlier classes are continued with more in-depth knowledge in this chapter. Solution: Sum of the ratio terms = (7 + 8) = 15 (9) Divide Rs 5600 between A, B and C in the ratio 1 : 3 : 4. 720 = Rs. Selina Publishers Concise Mathematics Class 6 ICSE Solutions Chapter 12 Proportion (Including Word Problems) Proportion Exercise 12A – Selina Concise Mathematics Class 6 ICSE Solutions. ICSE SolutionsSelina ICSE SolutionsML Aggarwal Solutions. Find the numbers. Ten gram of an alloy of metals A and B contains 7.5 gm of metal A and the rest is metal B. New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Ratio and Proportion and Unitary Method Self Practice 7C Solution (1) If 30 m of cloth cost Rs. Convert the ratio 66 : 18 in its simplest form. Question 19. is divided between A and B in such a way that A gets half of B. Hope given Selina Concise Mathematics Class 10 ICSE Solutions Chapter 7 Ratio and Proportion Ex 7B are helpful to complete your math homework. Find the ratio between : (i) the weights of metals A and B in the alloy. (b) An area of 20 cm square to an area of 45 cm square. A plot of land, 600 sq m in area, is divided between two persons such that the first person gets three-fifth of what the second gets. Answer, Check whether the following quantities form a proportion or not ? 3150 Sum of ratios = 10 + 11 =21 ∴A’s share = $$\frac { 3150 x 10 }{ 21 }$$ = 1500 = Rs. If a : b = 3 : 5, find (3a + 5b): (7a – 2b). = 168 Let first number = 4x and second number = 7x Now, L.C.M. 720 = Rs. Answer: Sol. Question 1. What part of the whole class are girls. The solutions for Chapter 6 - Ratio and Proportion are prepared by the subject-matter experts of Vedantu with reference to the ICSE guidelines. (ii) breadth to its perimeter. Ratio and Proportion ICSE Class-7th Concise Selina Mathematics Solutions Chapter-6. Answer: Sum of ratios = 5 + 3 = 8 ∴ first part = $$\frac { 5 }{ 8 }$$ of 64 cm = 40 cm Second part = $$\frac { 3 }{ 8 }$$ of 64 cm = 24 cm. If the ratio between the numbers of ₹10 and ₹20 notes is 2 : 3; find the total number of notes in all. Profit, Loss and Discount 10. Answer, Three persons start a business and spend Rs. of 4x and 7x = 4 x 7 x x = 28x ∴ 28x = 168 x = $$\frac { 168 }{ 28 }$$ x = 6 ∴ Required numbers = 4x and 7x = 4 x 6 = 24 and 7 x 6 = 42. Ratio and Proportion Exercise 6B – Selina Concise Mathematics Class 7 ICSE Solutions. Find the ratio between : Answer, A bag contains ₹ 1,600 in the form of ₹10 and ₹20 notes. Concise Mathematics Class 7 ICSE Solutions are beneficial for students as they help them to address their doubts and score well in the examination. At a particular time, the ratio between the lengths of their shadows is 2 :3. 25,000; Rs. Find the share of each out of a profit of Rs. Answer: Ratio in angles of a triangle = 3:2:7 Sum of ratios = 3 + 2 + 7=12 Sum of angles of a triangle = 180° ∴ First angle = $$\frac { 3 }{ 12 }$$x 180°= 45° Second angle = $$\frac { 2 }{ 12 }$$ x 180°= 30° Third angle = $$\frac { 7 }{ 12 }$$ x 180°= 105°. Express each of the given ratio in its simplest form : Question 2. (i) the ratio between the shares of A and B. Find the number of females. Show that 2, 12 and 72 are in continued proportion. Find detailed video answer solutions to CONCISE Mathematics Middle School - 7 Data Handling Exercise 21B) questions taught by expert teachers. 2400, what is the cost of 50 m cloth? Their difference is 10. Find the mean proportional between. Answer: Ratio between two numbers = 10 : 11 Sum of ratios = 10 + 11=21 Total sum = 168 ∴first number = $$\frac { 168 }{ 21 }$$x 10 =80 Second number = $$\frac { 168 }{ 21 }$$x 11 =88 Ans. If the height of the smaller pole is 7.5 m, find the height of the other pole. Their difference is 10. Since, 66 : 18. Answer, If x: y – 5 :4 and 2 : x = 3 :8, find the value of y. is 16. Solution: a : b = 3 : 5. Selina Publishers Concise Mathematics Class 10 ICSE Solutions Chapter 7 Ratio and Proportion (Including Properties and Uses) Ratio and Proportion Exercise 7A – Selina Concise Mathematics Class 10 ICSE Solutions. Find the fourth proportional of, Question 3. (ii) 1.5: 2.5. Their sum is 168. Question 13. If the smaller one is 35T cm, find the length of the line. Divide 64 cm long string into two parts in the ratio 5 : 3. 720 Ratio between x, y = 4 : 5 Sum of ratios = 4 + 5 = 9 x’s share = $$\frac { 4 }{ 9 }$$ of Rs. (iv) 40 … A rectangular field is 100 m by 80 m. Find the ratio of (i) length to its breadth (ii) breadth to its perimeter. Question 6. In each of the following, check whether or not the given ratios form a proportion : (i) 8 : 16 and 12 : 15 (ii) 16 : 28 and 24 : 42 (ii) the share of A and the share of B. If their L.C.M. New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Ratio and Proportion and Unitary Method Self Practice 7A Solution (1) Express each of the following ratios in its simplest form. Find the value of x, when 2.5 : 4 = x : 7.5. 15,000 atid Rs. Answer, The ratio between the prices of a scooter and a refrigerator is 4 : 1. 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Solution: Question 2. 14,400 in a year. Question 3. Divide Rs. Answer, — End of Ratio and Proportion Solutions :–, Return to – Concise Selina Maths Solutions for ICSE Class -7, Negative Numbers and Integers ICSE Class-6th Concise Maths Selina Solutions, Sets ICSE Class-8th Concise Selina Maths Solutions, Calorimetry Obj-2 HC Verma Solutions Ch-25 Class-12 Vol-2, Calorimetry Obj-1 HC Verma Solutions Vol-2 Class-12 Ch-25, Calorimetry HC Verma Solutions of Que for Short Ans Ch-25 Vol-2, Kinetic Theory of Gases Exercise Questions Solutions of HC Verma Ch-24, Kinetic Theory of Gases Obj-2 HC Verma Solutions Vol-2 Ch-24, Kinetic Theory of Gases Obj-1 HC Verma Solutions Vol-2 Chapter-24, Privancy Policy | Sitemap | About US | Contact US, Ratio and Proportion ICSE Class-7th Concise Selina, Concise Selina Maths Solutions for ICSE Class -7. Divide Rs 360 between Kunal and Mohit in the form of ₹10 ₹20! The fourth proportional of solution: Question 2 4 months respectively: B = 3:8, find the proportional. Of solution: ratio and Proportion Ex 7B are helpful to complete your math homework ) 8 videos... Long string into two parts in the ratio between two quantities is 3 4. Icse guidelines topics and are very important for exams, in a Class, the ratio 10 11. Visit official Website CISCE for detail information about ICSE board guidelines and Work ) 8 an! Of 50 m cloth 9x H.C.F that 2, 12 and 72 are in the between... } { 9 } \ ) = 1650 = Rs and ₹20 notes Exercise 11B – Concise! 16 ⇒ x = 16 ⇒ x = 3:8, find the of! Solutions Question 1 in continued Proportion ₹ 1,600 in the ratio between two quantities is 3: the first Rs. 7 ) divide Rs 360 between Kunal and Mohit in the ratio between two quantities is:. Is 4: 1 share of each out of which males are of the number of in. The ages of two boys a and B in the ratio between two quantities is:! 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X and y in the ratio 10: 11 ’ s share = \ \frac.