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GATE | GATE-CS-2015 (Set 1) | Question 65

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  • Last Updated : 28 Jun, 2021
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Based on the given statements, select the most appropriate option to solve the given question.
If two floors in a certain building are 9 feet apart, how many steps are there in a set of stairs that extends from the first floor to the second floor of the building?


1. Each step is 3/4 foot high.
2. Each step is 1 foot wide.

(A) Statement 1 alone is sufficient, but statement 2 alone is not sufficient
(B) Statement 2 alone is sufficient, but statement 1 alone is not sufficient
(C) Both statement together are sufficient, but neither statement alone is sufficient
(D) Statement 1 and 2 together are not sufficient

Answer: (A)

Explanation: When we climb from one floor to other, it is the height that matters and not the width of the staircase.Therefore, From statement 1 only, we can figure out that 9 / (3/4) or 12 steps are required.

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