Question

A number is divided into two parts, one part being 4 times the other. The difference between the two parts is 15.what is the number

Answer 1

let first part be x therefore second part is 4x
4x-x=15
x=15/3=5(first part)
2nd part=4x=20
therefore required no. =20+5=25

Answer 2

here is the answer.

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