Chapters
Chapter 2: Rational Numbers
Chapter 3: Fractions (Including Problems)
Chapter 4: Decimal Fractions (Decimals)
Chapter 5: Exponents (Including Laws of Exponents)
Chapter 6: Ratio and Proportion (Including Sharing in a Ratio)
Chapter 7: Unitary Method (Including Time and Work)
Chapter 8: Percent and Percentage
Chapter 9: Profit, Loss and Discount
Chapter 10: Simple Interest
Chapter 11: Fundamental Concepts (Including Fundamental Operations)
Chapter 12: Simple Linear Equations (Including Word Problems)
Chapter 13: Set Concepts (Some Simple Divisions by Vedic Method)
Chapter 14: Lines and Angles (Including Construction of angles)
Chapter 15: Triangles
Chapter 16: Pythagoras Theorem
Chapter 17: Symmetry (Including Reflection and Rotation)
Chapter 18: Recognition of Solids (Representing 3-D in 2-D)
Chapter 19: Congruency: Congruent Triangles
Chapter 20: Mensuration
Chapter 21: Data Handling
Chapter 22: Probability
Chapter 6: Ratio and Proportion (Including Sharing in a Ratio)
Selina solutions for Concise Mathematics Class 7 ICSE Chapter 6 Ratio and Proportion (Including Sharing in a Ratio)Exercise 6 (A)
Express the given ratio in its simplest form: 22 : 66
Express the given ratio in its simplest form: 1.5 : 2.5
Express the given ratio in its simplest form: `6 1/4 : 12 1/2`
Express the given ratio in its simplest form: 40 kg : 1 quintal
Express the given ratio in its simplest form: 10 paise : ₹ 1
Express the given ratio in its simplest form: 200 m : 5 km
Express the given ratio in its simplest form: 3 hours : 1 day
Express the given ratio in its simplest form: 6 months: `1 1/3` years
Express the given ratio in its simplest form: `1 1/3:2 1/4:2 1/2`
Divide 64 cm long string into two parts in the ratio 5 : 3.
Rs. 720 is divided between x and y in the ratio 4:5. How many rupees will each get?
The angles of a triangle are in the ratio 3 :2 : 7. Find each angle.
A rectangular field is 100 m by 80 m. Find the ratio of length to its breadth.
A rectangular field is 100 m by 80 m. Find the ratio of breadth to its perimeter.
The sum of three numbers, whose ratios are `3 1/3 : 4 1/5 : 6 1/8` is 4917. Find the numbers.
The ratio between two quantities is 3: the first is Rs. 810, find the second.
Two numbers are in the ratio 5: 7. Their difference is 10. Find the numbers.
Two numbers are in the ratio 10: 11. Their sum is 168. Find the numbers.
A line is divided in two parts in the ratio 2.5 : 1.3. If the smaller one is 35T cm, find the length of the line.
In a class, the ratio of boys to the girls is 7:8. What part of the whole class are girls?
The population of a town is ’ 50,000, out of which males are `1/3` of the whole population. Find the number of females. Also, find the ratio of the number of females to the whole population.
Ten gram of an alloy of metals A and B contains 7.5 gm of metal A and the rest is metal B. Find the ratio between :
(i) the weights of metals A and B in the alloy.
(ii) the weight of metal B and the weight of the alloy.
The ages of two boys A and B are 6 years 8 months and 7 years 4 months respectively. Divide Rs. 3,150 in the ratio of their ages.
Three persons start a business and spend Rs. 25,000; Rs. 15,000 atid Rs. 40,000 respectively. Find the share of each out of a profit of Rs. 14,400 in a year
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. Find the share of each.
Two poles of different heights are standing vertically on a horizontal field. At a particular time, the ratio between the lengths of their shadows is 2 :3. If the height of the smaller pole is 7.5 m, find the height of the other pole.
Two numbers are in the ratio 4 : 7. If their L.C.M. is 168, find the numbers.
Is divided between A and B in such a way that A gets half of B. Find :
(i) the ratio between the shares of A and B.
(ii) the share of A and the share of B.
The ratio between two numbers is 5 : 9. Find the numbers, if their H.C.F. is 16.
A bag contains ₹ 1,600 in the form of ₹10 and ₹20 notes. If the ratio between the numbers of ₹10 and ₹20 notes is 2 : 3; find the total number of notes in all.
The ratio between the prices of a scooter and a refrigerator is 4 : 1. If the scooter costs ₹ 45,000 more than the refrigerator, find the price of the refrigerator.
Selina solutions for Concise Mathematics Class 7 ICSE Chapter 6 Ratio and Proportion (Including Sharing in a Ratio)Exercise 6 (B)
Check whether the following quantities form a proportion or not?
3x, 7x, 24 and 56
Check whether the following quantities form a proportion or not?
0.8, 3, 2.4 and 9
Check whether the following quantities form a proportion or not?
`1 1/2, 3 1/4, 4 1/2 "and" 9 3/4`
Check whether the following quantities form a proportion or not?
0.4, 0.5, 2.9 and 3.5
Check whether the following quantities form a proportion or not?
`2 1/2, 5 1/2, 3.0 "and" 6.0`
Find the fourth proportional of 3, 12 and 4
Find the fourth proportional of 5, 9 and 45
Find the fourth proportional of 2.1, 1.5 and 8.4
Find the fourth proportional of `1/3, 2/5 "and" 8.4`
Find the fourth proportional of 4 hours 40 minutes, 1 hour 10 minutes and 16 hours.
Find the third proportional of 27 and 9
Find the third proportional of 2 m 40 cm and 40 cm
Find the third proportional of 1.8 and 0.6
Find the third proportional of `1/7 "and" 3/14`
Find the third proportional of 1.6 and 0.8
Find the mean proportional between 16 and 4
Find the mean proportional between 3 and 27
Find the mean proportional between 0.9 and 2.5
Find the mean proportional between 0.6 and 9.6
Find the mean proportional between `1/4 "and" 1/16`
If A : B = 3 : 5 and B : C = 4 : 7, find A : B : C
If x : y = 2 : 3 and y : z = 5 : 7, find x : y : z.
If m : n = 4 : 9 and n : s : 3 : 7, find m : s
If P : Q = `1/2 : 1/3` and Q : R = `1 1/2 : 1 1/3`, find P : R.
If a : b = 1.5 : 3.5 and b : c = 5 : 6, find a : c.
If `1 1/4 : 2 1/3 = "p" : "q"` and q : r = `4 1/2 : 5 1/4`; find p : r.
If x: y - 5 :4 and 2 : x = 3 :8, find the value of y.
Find the value of x, when 2.5 : 4 = x : 7.5.
Show that 2, 12 and 72 are in continued proportion.
Chapter 6: Ratio and Proportion (Including Sharing in a Ratio)
Selina solutions for Concise Mathematics Class 7 ICSE chapter 6 - Ratio and Proportion (Including Sharing in a Ratio)
Selina solutions for Concise Mathematics Class 7 ICSE chapter 6 (Ratio and Proportion (Including Sharing in a Ratio)) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Mathematics Class 7 ICSE solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Concise Mathematics Class 7 ICSE chapter 6 Ratio and Proportion (Including Sharing in a Ratio) are Concept of Ratio, Concept of Ratio.
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