GATE ME 2019 Set 1 — Question 3
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General Aptitude → Analytical Aptitude → Numerical Relations & Reasoning
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Question
A worker noticed that the hour hand on the factory clock had moved by 225 degrees during her stay at the factory. For how long did she stay in the factory?
Correct answer
(D) 7.5 hours
Solution
The hour hand of a clock completes one full rotation (360 degrees) in 12 hours.
Degrees per hour = per hour.
If the hour hand moved by , the time duration is hours.
Degrees per hour = per hour.
If the hour hand moved by , the time duration is hours.
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