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Setler [38]
3 years ago
11

Possible number of learners in the

Mathematics
2 answers:
Anestetic [448]3 years ago
6 0

Find multiples of 30 and 40:

30: 30, 60, 90, 120, 150

40: 40, 80, 120, 160

The least common multiple is 120, so every 120 minutes they willl both ring.

1 hour = 60 minutes:

120/60 = 2 hours.

The bells ring together every 2 hours.

8 + 2  = 10 am

10 +  = 12pm

12 + 2 = 2 pm

The bells will ring together at am, 12 pm and 2 pm.

quester [9]3 years ago
6 0

Answer:

<h2><u>Solution </u><u>:</u><u>-</u></h2>

At first common multiple of 30 an 40

\sf \to \: 30 = 30,60,90,120

\sf \to \: 40 = 40,80,120

Common Multiple = 120

Time taken = 120/60 = 2 hrs

Now,

8.00 + 2 = 10.00 am

10.00 + 2 = 12.00 noon

12.00 + 2 = 2.00 pm

\\

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