Problems On Ratio





In this page "problems on ratio", we are going to see some practice problems on ratio and proportion which are usually asked in SAT exam and other competitive exams.By practicing these problems, students can improve their aptitude skills as well as they can know the time consumption for SAT exam & other competitive exams.

1.If 8:3 :: 3:x, find the value of x.

(A)    5/7
(B)    9/8
(C)   7/12




2.If A : B = 8 : 9 ,B : C = 9 : 11 and C : D = 11 : 16.What will be the value of A : D?



(A)    1 : 2
(B)    5 : 6
(C)   3 : 2




3.Two numbers are in the ratio 11 : 13. if 2 is subtracted from each number, the ratio of remaining numbers becomes 7 : 9.What are the numbers?




(A)   33 and 39
(B)   45 and 49
(C)   62 and 65




4.Which one of the following ratios is the largest? 3 : 4 , 2 : 3 , 5 : 7 .



(A)   3 : 4
(B)   2 : 3
(C)   5 : 7




5.If x : y = 12 : 5, and z : y = 21 : 16, find out the value of x : z. 20 : 63, 63 : 20, 48 : 35



(A)   20:63
(B)   63:20
(C)   48:35




6.If a : (b+c) = 1:3 and c:(a+b) = 5:7, find out the value of b:(c+a).



(A)   3:5
(B)   1:2
(C)   3:8




7.If two numbers are in the ratio 7:9 and the smallest number is equal to 49.Find the bigger number.



(A)   73
(B)   60
(C)   63




8.If the diagonal of the square and the side of the another square,both are 10 cm What will be the ratio of the area of both the squares?



(A)   2:1
(B)   3:2
(C)   1:2




9. In which ratio the ten qualities worth $4 per kg and $66 per kg be mixed, so that the price of the mixture becomes $68 per kg?



(A)   1:3
(B)   1:4
(C)   1:6




10. A, B and C play cricket match. The ratio of runs scored by A and B is 1.2 and the ratio of runs scored B and C is 3:4.If jointly they have made 204 runs,how many more runs C has made than A?



(A)   60 runs
(B)   70 runs
(C)   85 runs




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Answers
1. 9/8

2. 1 : 2

3. 33 and 39

4. 3 : 4

5. 48:35

6. 1:2

7. 63

8. 1:2

9. 1:3

10. 60 runs


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