Question

By what number must a given number be multiplied to increase it by 12%?​

Answer 1

Step-by-step explanation:

Let the number be x

It is increased by 12%

New number=x+

100

12

x

=

100

112

x=

25

28

x

∴ The given number should be multiplied by

25

28

to increase it by 12%.

Answer 2

Answer:

The number must be multiplied by 1.12.

Step-by-step explanation:

Let assume our number to be x.

Then after increment, the number y (let) = x + 12% of x.

Also, the number y =  m x          ( m is the number we need to find out.)

Equating both of them,

$m x = x + \frac{12x}{100} \\m x = \frac{100x+12x}{100} \\mx = \frac{112x}{100} \\m= \frac{112}{100} \\m=1.12$

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