Home
Class 14
MATHS
At a telephone exchange, three phones ri...

At a telephone exchange, three phones ring at intervals of 20sec, 24 sec and 30 seconds. If they ring together at 11:25 a.m, when will they next ring together?
A 11: 29 a.m.
B. 11:27 a.m
C. 11:51 a.m
D 12:29 p.m

A

C

B

A

C

D

D

B

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Three bells ring at intervals of 15, 20 and 30 minutes respectively. If they all ring at 11.00 a.m. together, at what time will they next ring together ? A. 11.30 a.m. B. 12 noon C. 12.30 p.m. D. 1.00 p.m.

Three bells ring at intervals of 30, 45 and 60 minutes respectively. If they begin ringing together at 5 p.m., then they will ring together again at___

Four bells ring at 16, 24, 36, 42 minute intervals. If they ring together at 6.00 am, after bow long would they next ring together?

Three bells ring at intervals of 4, 7 and 14 minutes. All three range at 6 am. When will they ring together again ?

Three bells rings at the interval of 10, 15 and 20 min, respectively. If they all ring at 11 am at once, then What time they will ring together again?

The bells of three Churchs ring on the interval of 10, 12 and 15 minute respectively. If those ring at 8:30 A.M. together, then when will those ring next time together?

3 bells ring at an interval of 4,7 and 14 minutes. All three bell rang at 6 am, when the three balls will the ring together next?