GATE Mechanical Engineering (ME) 2019 Shift 1 Solved Paper

Question : 4 of 65

Marks: +1, -0

A worker noticed that the hour hand on the factory clock had moved by 225 degrees during her say at the factory. For how long did she stay in the factory?

$7.5$ hours
4 hours and 15 mins
$3.75$ hours
$8.5$ hours

Validate

Solution:

Hour hand moves 360 degrees in 12 hrs
So, when the hour hand has moved 225 degrees that means hrs passed

=\;{12 × 225}/{360}=7.5

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