Question

A lab has two bacteria cultures. Culture A contains 8 x10^3 bacteria, and culture B contains 4 x10^6 bacteria. How do the two cultures compare in size?A Culture A contains twice as many bacteria as culture B.B Culture A contains 1/25 as many bacteria as culture B.C Culture A contains 1/2 as many bacteria as culture B.D Culture A contains 1/50 as many bacteria as culture B.

Answer 1

Given:

Culture A contains 8 x10^4 bacteria

Culture B contains 4 x10^6 bacteria

To compare between them we will divide A by B

so,

`(8*10^4)/(4*10^6)=(8)/(4)\cdot(10^4)/(10^4\cdot10^2)=(2)/(1)\cdot(1)/(10^2)=(2)/(100)=(1)/(50)`

so, the answer will be:

Culture A contains 1/50 as many bacteria as culture B.​

The answer is option D.