Question

one third of a number is increased by 5, the result is 15 . the number is

Answer 1

let the no. be x say
according to the problem
x/3+5=15
x/3=10
x=30

Answer 2

Let the number be 'x'

ATQ (According To Question) :-

$\frac{1}{3}x + 5 = 15\\ \frac{1}{3}x = 15 - 5\\ x = \frac{3}{1}(10)\\ x = 30$

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