1.

A caterpiller crawls up a pole of 75 inches high , standing from the ground . Each day it crawls up 5 inches and each night it slides down 4 inches . When will it reach the top1. At the end of 70 days2. At the end of 71 days3. At the end of 72 days4. At the end of 73 days

Answer» Correct Answer - Option 2 : At the end of 71 days

Given:

Height of pole is 75 inches                                

Calculation:

Caterpillar crawls 5 inches in a day and slide down 4 inches in night

Total distance cover by caterpillar day and night = 5 - 4

⇒ 1 inches

Total distance to cover by caterpillar in 70 days = 70 inches

Remaining = 75 – 70

⇒ 5 inches

Caterpillar takes 1 day to cover 5 inches

Total days required to reach the top = 70 + 1

⇒ 71 days

∴ It will reach at the end of 71 days.



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