User Forum

Subject :IMO    Class : Class 6

If 3x = 2k and 5y = 8k, then find the ratio x : y.

A12 : 5
B7 : 11
C5 : 12
D11 : 7


Ans 1:

Class : Class 6

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9

Ans 4:

Class : Class 9
x = 2k/3 and Y = 8k/5Therefore, x : y= x/y = (2k/3)/(8k/5)= (2k/3) *(5/8k)On cancelling, 2k with 8k, we get= (1/3) * (5/4) = 5/12Thus, x:y = 5:12Answer - (C)

Post Your Answer