A number, 45000, is increased successively by 20% and 25%. Find the overall increase in percentage.

Correct option is D

Given:

Initial number = 45000

First increase = 20%

Second increase = 25%

Formula Used:

Overall % increase = x + y + $$\frac {xy}{100}$$

Where, x = first % increase , y = second % increase 

Solution:

Overall % increase = x + y + $$\frac {xy}{100}$$​

Overall % increase = 20 + 25 + $$\frac {20\times 25}{100}$$

​​Overall % increase = 45 + 5 = 50%