Question

if 20 is added to 1/3 rd of a number ,it becomes 35, find the numbers​

Answer 1

Answer:

let the number be 'X'

$20 + \frac{1}{3} x = 35$

$\frac{1}{3}x = 35 - 20$

$\frac{1}{3} x = 15$

$x = 15 \times 3$

$x = 45$

therefore the number is 45

Answer 2

$\large\mathfrak \pink{Solution:-}$

$\underline \mathbb{GIVEN:-}$

20 is added to 1/3 rd of a number and it becomes 35.

$\underline \mathbb{TO \: FIND:-}$

The unknown number.

$\underline \mathbb{ASSUMPTION:-}$

Let, the unknown number be x.

$\underline \mathbb{BY \: THE \: PROBLEM:-}$

$\frac{1}{3} of \: x + 20 = 35 \\ \\ \implies \: \frac{x}{3} = 35 - 20\\ \\ \implies \: \frac{x}{3} = 15 \\ \\ \implies \: x = 45$

$\underline \mathbb{ANSWER:-}$

The unknown number is 45.

$\underline \mathbb{VERIFICATION:-}$

$\frac{1}{\cancel{3}} of \: \cancel{45} + 20 = 35 \\ \\ \implies \: 15 + 20 = 35 \\ \\ \implies \:35 = 35(proved)$