Asked by Zero

60% of what number is 24?
180% of what number is 80?

Please explain the method.
Answered by suarez
well think of it this way, 60 and 24 are dividable by 6, so divide 60 by 6 and 24 by 6 so 10 percent is 4, 10 times 10 percent is 100, which would be 40 if each ten percent is 4.

Answered by Reiny
.6 (some number) = 24

.6(some number)/.6 = 24/.6
some number = 40

or more in standard form
.6x = 24
x = 24/.6 = 40

1.8x = 80
x = 80/1.8 = 44.44.. (the 4 repeats)
or x = 400/9

check:
(180/100)(400/9)
= 80
Answered by Zero
Oh wait! I'm sorry 180% was supposed to be 160% my bad.
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