Question

Divide 170 into three parts such that the first part is 10 more than that the second part and its ratio with third part is 2:5

Answer 1

let the first number be 2x
so, the second number is 2x-10
and the third number is 5x
so, according to question
2x + 2x - 10 + 5x = 170
9x = 170 + 10
9x = 180
x = 20

So, first number (2x) = 40
second number (2x-10) = 30
and third number (5x) = 100