Q: Three bells ring simultaneously at 11 a.m. They ring at regular int – McqOptions

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1.	Q: Three bells ring simultaneously at 11 a.m. They ring at regular intervals of 20 minutes, 30 minutes, 40 minutes respectively. The time when all the three rings together next is:
A.	1.15 p.m.
B.	1.30 p.m.
C.	2 p.m.
D.	1 p.m.
Answer» E.

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