Question

In a certain experiment, the count of bacteria was increasing at the rate of 2.5% per hour. Initially, the count was 512000. Find the count of bacteria at the end of 2 hours.

(A) 537920

(B) 536920

(C) 537960

(D) More than one of the above

(E) None of the above

Answer 1

Correct Option is (A) 537920 

Count of bacteria intially = 512000

Increase rate = 2.5% per hour 

\(\therefore\) Count of bacteria after 2 hours = 512000\(\times\) (1+2.5/100)²

= 512000\(\times\) 1.050625 = 537920

Answer 2

The count of bacteria at the end of 2 hours is: (A) 537920