Math, asked by NNSS32311, 1 year ago

Four different electronic devices make a beep after every 30 mins, 50 mins, 1 hr 20 mins, 1 hr 40 minutes respectively all the devices beeped together at 2 a.m. they will again beep together at what time

Answers

Answered by arsh0006

0

2pm .. ....... . .... ... . ...........

NNSS32311: answer is 10 P.M.

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