Question

9. Three bells toll at the intervals of 30.40
60 seconds, In 30 minutes, how many ti
they will toll together?
​

Answer 1

Step-by-step explanation:

We have to find the L.C.M of 30,45,60

30 =2× 5×3

45= 3 x 3×5

60 =2× 2× 3 x 5

L.c.m ( 30,45,60) = 2x2x3×3×5 = 180 min

= 180 /60 = 3 hours.

Hence,they will toll together at = 9:30 a.m +3 hrs= 12:30 p.m