Question

MEDAL FOR BEST ANSWER

What is the percent of decrease from 110 to 77?

A.
30%

B.
33%

C.
43%

D.
70%

Answer 1

110-77=(x)% of 110
33=(x/100)*110

Answer 2

110 to zero (0) is a 100% decrease. This should be obvious.
110 to 55 is a 50% decrease. This is less obvious.
110 to 99 is a 10% decrease. This might take a little thought.

Reason it out. From my examples, it must be less than 50%, but more than 10%.

Answer 3

Thanks