Question

5.
A monkey climbs a pole of height
30 metres. In the first minute, he climbs
15 metres but in the second minute slips
down 12 metres. The process continues
till be reaches on the top of the pole.
Time required to reach on the top of the
pole is​

Answer 1

Answer:

Time required to reach on the top of the pole is 11 minutes .

Step-by-step explanation:

In first minute , distance covered is 15 m .

In second minute , monkey slips down 12 m below , So distance covered is 3 m .

In third minute , monkey climbs 15 m again so the height climbed now is 18 m .

Similarly , In 4th minute , height = 6 m .

In 5th minute , height = 21 m .

In 6th minute , height = 9 m .

In 7th minute , height = 24 m .

In 8th minute , height = 12 m .

In 9th minute , height = 27 m .

In 10th minute , height = 15 m .

In 11th minute , height = 30 m .

And that is the answer ....

*You will notice that 3 is added after every minute alternatively .*

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