Question

A biochemical microscope slide has 7500 bacteria dying at a rate of 150 per hour. Another slide has 4500 bacteria increasing at a rate of 50 per hour. In how many hours will the bacterial count on both slides be the same?

Answer 1

Answer:

18

Slide 1

{7500}{150} = 50

=50bacteriaperhour

Slide 2

{4500}{50} = 900

=900perhour

Lcm of 50 and 900

18 hours