Question

a natural no. when increased by 15 it becomes 250 times of its reciprocal the natural number is

Answer 1

x+15=250/x

x^2+15x-250=0

x^2+25x-10x-250=0

x(x+25)-10(x+25)

(x+25)(x-10)

x=-25,x=10

since we have to find a natural number, x=10