Question

The result of a number ,when decreased by 25% is 210. Find the number

Answer 1

Step-by-step explanation:

The result of a number ,when decreased by 25% is 210. Find the number

Answer 2

Answer:

Let that no. be x.

$25\% \: of \: x \: = \: \frac{25}{100} x \: = \: \frac{x}{4}$

Number after decreasing 25% =

$x - \frac{x}{4} \: = \: \frac{3x}{4}$

$\frac{3x}{4} \: = \: 210 \\ 3x \: = 210 \times 4 \\ 3x \: = \: 840 \\ x \: = \: 280$

Number 280 when decreased by 25% becomes 210.