Question no 2359 SSC CGL Tier 1 General Intelligence and Reasoning Questions and Answers Online Test 81

SSC CGL Tier 1 :: GIR Test 81

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1 .

If a clock rings once at 1 O' clock, twice at 2 O' clock, thrice at 3 O' clock and so on, i.e., it rings as many times as its time, then how many times does it ring in 24 hours ?

[ A ] 48
[ B ] 150
[ C ] 156
[ D ] 200

Answer : Option C

Explanation :

In 12 hours, the number of times the clock will ring

= 1 + 2 + 3 + -----------+ 12

= 78 time

In 24 hours, the clock will ring 78 $\times$ 2 =156 times.

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