Question

The humidity dropped an average of 1 1/3% each hour over the last six hours. What was the total change in humidity?

A: -8%

B: -6 1/3%

C: -7 1/3%

D: -6 1/2

Answer 1

C: - 7 1/3 %
You have to take 11/3 * 6 which equals 22 then divide 22 by 3 and it equals 7 1/3 since its dropping in humidity its negative.

Answer 2

Answer: A . -8%

Explanation:

Given : The humidity dropped an average of
`1(1)/(3)\%` each hour over the last six hours.

which can be written as
`-(3+1)/(3)\%=(4)/(3\%)`

Then , the total change in humidity in 6 hours will be:-

`-6*(4)/(3\%)=-8\%`

Hence, the total change in humidity = -8%

Thus , option A is the correct option.