Problem 6 · 2015 Math Kangaroo
Easy
Ratios, Rates & Proportions
work-backward
The drive from A-village to B-town via C-house takes 130 minutes. The drive from A-village to C-house takes 35 minutes. How many minutes does a drive from C-house to B-town take?
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Answer: A — 95
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Hint 1 of 2
The whole trip splits into the first leg plus the part you want.
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Hint 2 of 2
Subtract the A-to-C time from the total A-to-B time.
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Approach: subtract the known leg from the total
- The full drive A to B via C takes 130 minutes.
- The first leg A to C takes 35 minutes.
- So the remaining leg C to B takes 130 - 35 = 95 minutes.
- The answer is 95 (A).
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