Question

47. Which of the following represents 0.2% of 1/5?

(A) 1/25,000
(B) 1/2500
(c) 1/250
(D) 1/25
(E) 1/10

Answer 1

First think of what 0.2% is as a fraction,

`0.2\%=(0.2)/(100)=(2\cdot10^(-1))/(10^2)=(2)/(10^3)=(2)/(1000)`

Now multiply the fraction by a fifth,

`(2)/(1000)\cdot(1)/(5)=(2)/(5000)`

Which then simplifies to,

`(2)/(5000)=\boxed{(1)/(2500)}`

Hope this helps :)