Question

the difference of two number is 256 and their ratio is 9:5. find the number

Answer 1

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Let the ratio be 9x and 5x
.
. . 9x - 5x = 256
4x = 256
x= 256÷4
x = 64
therefore, 9x = 576
5x = 320

Answer 2

Let 1st no. be 256+x and second no. be x

Then,

256+x/x=9/4

by cross-mutiplication

1280+5x=9x

x=320