Question

5. A monkey climbs 90 cm up a slippery pole every
second and slips down 60 cm over the next second.
How many seconds will the monkey take to reach a
banana tied 450 cm up the slippery pole?
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Answer 1

Answer:

30 seconds

Step-by-step explanation:

in 1 sec monkey climbs 90cm

in another 1sec he slips 60cm

therefore,as a result he climbs (90-30)cm in 2 seconds.

it means he climbs 15cm in 1 second

now,to find the time taken by monkey we divide the total height by the height climbed by monkey in 1 second, I.e.,

450÷15=30second.

Thus,monkey takes 30 second