Question

The water level in a dam initially is 500 m. Due to rains the level of water is increasing 5% for every 10 days of the total level. Find the missing number.

Time taken (in days)	Water level (in m)
0	500
10	A
20	551.25
30	578.8125

• A. 525

Answer 1

The correct option is A 525
Given:

Initial amount of water in the dam = 500 m

Percentage of water increases for every 10 days is 5% of the total

$\therefore$ At t = 10 days,
$\text{Amount of water =}500+500\times 5\%=525$

$\therefore$ The value of A is 525