SOLUTION: one third of one fifth of a certain number is 6. what is 10 % of that number

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Question 688142: one third of one fifth of a certain number is 6. what is 10 % of that number
Answer by nerdybill(7384) About Me  (Show Source):
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one third of one fifth of a certain number is 6. what is 10 % of that number
.
Let n = the number
then "one third of one fifth of a certain number is 6" we have
(1/3)(1/5)n = 6
multiplying both sides by 3:
(1/5)n = 18
multiplying both sides by 5:
n = 90
.
"10 % of that number" is then
.10 * 90 = 9 (answer)