SSC CGL Tier II 1 Dec 2016 Paper 1

Question : 2 of 100

Marks: +1, -0

Three bells ring at intervals of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a particular time. They will ring together after every

6 minutes
12 minutes
18 minutes
24 minutes

Validate

Solution:

(2) Required answer = LCM of 36, 40 and 48 seconds
= 720 seconds

= ( {720}/{60} )

minutes

=12

minutes

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