Question

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In a school duration of a period in junior section is 40min and the senior section is 60min if the bell for each section is ringing at 9am . When will the 2 bells ring together again ?

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Answer 1

Answer:

Given :

First bell rings at 40 min.

Second bell rings at 1 hr

= 60 min.

Find the L.C.M

L.C.M of 60 min and 40 min.

60 = 2 × 3 × 10

40 = 2 × 2 × 10

L.C.M = 2 × 10 × 3 × 2

= 120

L.C.M = 120 min.

= 2 hr.

Finding the time

Time will hence be :

9 : 00 am + 2 hr

= 11 : 00 am

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Answer 2

Answer:

11:00 AM

Step-by-step explanation:

OK I'll try

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