Math, asked by jyotilahane2017, 1 month ago

Reena climbs up 5 stairs every second and then climbs down 2 stairs over the next
second. How many seconds will she take to climb 60 stairs?

Answers

Answered by meharafshan09
4

Answer:

The net climb for Reena is 3 stairs per 2 seconds. So she should take (60/3) *2=40 seconds. Since in the last second she will not fall, she will reach a second before, that is by 39th second.

Step-by-step explanation:

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