Math, asked by harshgupta336655, 8 months ago

the green light of a crossing goes of amd off. every 15 sec and that of the next crossing goes and off every 20sec .if they are lighted together at 4 am. when will the again go on together.कोई आंसर लिखकर मत भेज दो ​

Answers

Answered by saniyaarora2003
2

Answer:

4:01 am

Step-by-step explanation:

they start together at 4 am

take LCM

15=5*3

20=5*2*2

60 sec=1 min

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