Question

A number increased by 20%gives 42 .what is the number

Answer 1

$\bold{The\:answer\:is\:35}$

let the no. be x

20 percent of no. be 20x /100

=x/5

20 percent of no. add to itself is x+x/5

=6x/5

According to question

6x/5=42

x=42×5/6

x=35

Answer 2

The number is 35

Step-by-step explanation:

Let the number be x

Now the number is increased by 20%

So, New number = $x+20\%x=x+\frac{20}{100}x=\frac{120}{100}x$

A number increased by 20%gives 42

So, $\frac{120}{100}x=42\\x=\frac{42 \times 100}{120}\\x=35$

Hence the number is 35

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A number increased by 20%gives 42 .what is the number

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