Three bells ring simultaneously at 7 p.m. They ring at regular interva – McqOptions

MCQOPTIONS

1.	Three bells ring simultaneously at 7 p.m. They ring at regular intervals of 15 minutes, 18 minutes and 20 minutes respectively. The time when all the three bells will ring together is:
A.	9 p.m.
B.	10 p.m.
C.	9.30 p.m.
D.	10:30 p.m
Answer» C. 9.30 p.m.

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