Question

1. A number is increased by 20% give 42 then find the number. 2. A number is increased to 20% gives 42 then find the number.​

Answer 1

Answer:

Let the required number be x.

Atq,

$\: \: \: \: \: \: \: \: x + 20\% \: of \: x = 42$

$= > x + \frac{20}{100} \times x = 42$

$= > x + \frac{x}{5} = 42$

$= > \frac{5x + x}{5} = 42$

$= > \frac{6x}{5} = 42$

$= > 6x = 5 \times 42$

$= > x = \frac{5 \times 42}{6}$

$= > x = 5 \times 7$

$= > x =35$

Hence, the required number is 35.

Answer 2

Answer:

Step-by-step explanation:

1/5=20%

5= original no.

1 is increased no. by 20%

So no. becomes after the increment (5+1) =6

Value of 6 is 42

Value of 1 is 7

So the original no. Is 7×5= 35

Answer = 35