Question

If 12 percent of a number is 15,then 20 pe4cent of a number __?

Answer 1

let the no be X
then 12%of X =15
so X=125
now,
20% of 125= 25
hence the ans. is 25

Answer 2

Concept:

The percentage is the ratio of obtained numbers to the total number and multiplied by 100.

Given:

12 percent of a number = 15

Find:

We are asked to find the 20 percent of a number.

Solution:

We have,

12 percent of a number = 15

Now,

Let,

The number = y

So,

Now,

According to the question,

12 percent of a number = 15

i.e.

12% of y = 15

Now, on solving,

(3/25)y = 15

We get,

y = 15 × 25/3

i.e.

y = 125

NOw,

20 percent of a number,

i.e.

20% of y

i.e.

= 20% of 125

Now, on solving,

= (1/5) × 125

We get,

= 25

Hence, the 20 percent of the number is 25.

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