Question

If 30% of a number exceeds 20% of it by 18, then find the number?

Answer 1

Let the number be x.

Then,
30% of x = 30x/100
20% of x = 20x/100

According to question,

$\frac{30x}{100} = \frac{20x}{100} + 18$

$= > \frac{30x}{100} - \frac{20x}{100} = 18$

$= > \frac{30x - 20x}{100} = 18$

$= > \frac{10x}{100} = 18$

$= > 10x = 18 \times100$

$= > 10x = 1800$

$= > x = \frac{1800}{10}$

$= > x = 180$

Hence, the number is 180.

Hope it'll help.. :-D.

Answer 2

Answer:

180

Step-by-step explanation

30% of a number 'x' = 30/100 x = 0.3 x

20% of a number 'x' = 20/100 x = 0.2 x

As per the question,

0.3x = 0.2x + 18

0.1 x = 18

x = 180