Question

3 bells ring at intervals of 5 minutes 12 minutes 15 minutes respectively. They ring simultaneously at 10 a.m . At what will they ring again simultaneously? Give me the answer with steps

Answer 1

Answer:

11 am

Explanation:

3 bells ring at intervals of 5 minutes 12 minutes 15 minutes

LCM of 5 12 15 with 3

the LCM of numbers is 60 minutes

Now add the LCM of numbers with simultaneously time

10 a.m. + 60 minutes ( 1 hr )

ans = 11 a.m.

Answer 2

Concept:-

It might resemble a word or a number representation of the quantity's arithmetic value. It could resemble a word or a number that represents the numerical value of the quantity. It could resemble a word or a number that represents the numerical value of the quantity. It could have the appearance of a word or a number that denotes the quantity's numerical value.

Given:-

The given question is $3$ bells ring at intervals of $5$ minutes $12$ minutes $15$ minutes respectively. They ring simultaneously at $10$ a.m.

Find:-

We need to find that at what will they ring again simultaneously.

Solution:-

The time after which they will ring together$=$L.C.M of their ringing time

L.C.M of $5,12,15$

$=60$ minutes

$=1$ hour

They ring simultaneously at $10$ a.m.

Hence, they will ring again simultaneously $1$ hour after  $10$ a.m. which is at $11$ a.m.

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