Question

Three babies A, B and C cry out at every interval of

Answer 1

Answer:

LCM of 20, 30, and 40

LCM = 120

they would cry together for the first time in 120 minutes.

Answer 2

Answer:

the answer is below :)

Step-by-step explanation:

for this we have to use lcm of 20 30 and 40

2|20,30,40

2|10,15,20

2|5,15,10

5|1,3,2

2|1,3,1

3|,1,1

120÷60

after 2 hours