Jharkhand PSC Prelim Exam 2010 Solved Paper

Question : 80 of 100

Marks: +1, -0

If a wall watch of five clock it takes five minutes to ring the bell five times, how long it will take time at the same speed for ring the bell nine time at 9 clock?

5 min
8 min
10 min
12 min

Validate

Solution:

To ring times it takes 5 minute.
Then, 1 times

=\;{5}/{5}=1

minute

∴ 9

times

=1 × 9

=9

minute

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