Question

Two numbers are in the ratio 5:2 if their difference is 21 find the numbers

Answer 1

Answer:

Let the constant ratio be ' k ' .

First number = 5 k

Second number = 2 k

Given their difference is 21

i.e. 5 k - 2 k = 21

3 k = 21

k = 7 .

Therefore ,

First number = 35

Second number = 14 .

Answer 2

Answer:

let the no.s be 5x:2x

21=5x+2x

21=7x

x=21/7

x=3

so, no=5x

=5×3

=15