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I need help with this question

I need help with this question-example-1
User Danixa
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2 Answers

6 votes
The answer is A. 13 hrs

This is a bit of a lengthy answer, but I hope it helps you if you need to explain your thinking. If you don't... it still helps to know HOW to solve it :)

I solved this by trying to multiply 13.55 by each of the options to see which got me a product of 176.15. It turned out that the first option was the answer, so I stopped there.

I could have done long division (176.15 / 13.55) or used logic to eliminate answers I knew weren't right.
Option C, 1.3, would only result in something a little over 13 which is not close to 176.15.
Option 4, 0.13, would have resulted in a smaller number so obviously it wasnt right either.
Then I thought, "Well, 130 x 13 sounds like its gonna end up with some crazy big number because 130 x 2 is already 300, so the answer must be 13."
User Narcis Neacsu
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5 votes
A. 13 hours

176.15÷13.55=13
User Grigori Melnik
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