Wipro Company Numerical Ability Ratio and Proportion

What number must be added to two numbers which are in the ration 6:7 so that the ratio becomes 8:9 and sum of the resulting numbers is 289.
A. 34
B. 17
C. 51
D. 68
E. Cannot be determined

Read Solution (Total 1)

let the numbers be 6x,7x
nd y be the numbr to b added
then
6x+y/7x+y=8/9
then y=2x
it is given tha ratio of two numbers =8:9
nd sum of resulting numbers=289
hence 8x+9x=289
17x=289
x=17
so y=2*17=34
hence option (a)
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