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Geometry - Quant/Math - CAT 2009
Question 4 the day:
February 11, 2003
The question for the day is based on some basic geometry concepts.
- A stairway 10ft high is such that each step accounts for half a foot upward and one-foot forward. What distance will an ant travel if it starts from ground level to reach the top of the stairway?
| (1) |
30 ft
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(2) |
33 ft
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| (3) |
10 ft
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(4) |
29 ft
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Correct Answer - (4)
Solution:
The ant moves 20 times upwards and only 19 times forward.
Therefore, the ant covers a distance of 20 * 0.5 = 10 feet when it moves upwards
And moves 19 * 1 = 19 feet forward
The total distance covered by the ant = 29 ft.
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