An insect crawls 10 cm every second on a 90 cm vertical rod and then falls down 4 cm over the next second. How many seconds will it take to climb the rod.

Asked by mishrasheela170 | 24th Feb, 2020, 01:01: PM

Expert Answer:

An insect crawls 10 cm every second on a 90 cm vertical rod and then falls down 4 cm over the next second. How many seconds will it take to climb the rod.
 
This is a logcal reasoning based problem.
 
An insect crawls 10 cm in the first second.
It falls down 4 cm at the second second.
Overall the insect moved (10 - 4) = 6 cm in 2 seconds.
 
Now you can find the time taken by the insect to cover 90 cm rod.
 

Answered by  | 24th Feb, 2020, 01:27: PM