Question

Rohan sets him alarm at intervals of 10 minutes, 15 minutes 30 minutes and 45 minutes. If they ring simultaneously at 7:00 am. At what time will the alarm again ring simultaneously?
Please answer

Answer 1

Answer:

find lcm first

Step-by-step explanation:

LCM = 90

7 Am. + 90 min.

= 8:30am

Answer 2

Answer:

I have two answer

1. 10min
2. 5min

u should check the answer