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Important Ratio and Proportion Questions 2020

5 years ago 25.9K Views
Q :  What same number must be added to each term of the ratio 7 : 3 so that the ratio becomes 2 : 3?

(A) 1

(B) 2

(C) 5

(D) can’t be determined

Correct Answer : D

Q :  If (4x-3y) : (2x+5y) = 12 : 19 then x : y is…….

(A) 2:3

(B) 1 : 2

(C) 3 : 2

(D) 2 : 1

Correct Answer : C

Q :  

If the positions of the digits of a two-digit number are interchanged, the number obtained is smaller than the original number by 27. If the digits of the number are in the ratio of 1 : 2, what is the original number? 

(A) 36

(B) 63

(C) 48

(D) Cannot be determined

(E) None of these different.

Correct Answer : B

Q :  

If   0.8 : X :: 5 : 8, then the value of X is

(A) 1.28

(B) 1.16

(C) 1.32

(D) 1.24

Correct Answer : A

Q :  

The monthly salaries of A, B and C are in the ratio 2 : 3 : 5. If C's monthly salary is ₹ 12,000 more than that of A, then B's annual salary is 

(A) ₹ 1,20,000

(B) ₹ 1,44,000

(C) ₹ 1,80,000

(D) ₹2,40,000

Correct Answer : B

Q :  

A sum of ₹ 1550 was lent partly at 5 % and partly at 8 % simple interest. The total interest received after 3 years is ₹300. The ratio of money lent at 5 % to that at 8 % is

(A) 5 : 8

(B) 8 : 5

(C) 31 : 6

(D) 16 : 15

Correct Answer : D

Q :  

The difference of cube between the two numbers is 999. If the numbers are in the ratio of 4: 3, then what is the square of the smaller number?

(A) 49

(B) 81

(C) 64

(D) 100

Correct Answer : B

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