An insect crawls up 5cm every second on a 60cm vertical rod and then falls down 2cm over the next second. How many seconds will it take to climb the rod?
A. 20 seconds
B. 39 seconds
C. 60 seconds
D. 30 seconds
An insect crawls up 5cm every second on a 60cm vertical rod and then falls down 2cm over the next second. How many seconds will it take to climb the rod?
A. 20 seconds
B. 39 seconds
C. 60 seconds
D. 30 seconds
Harshit Singh , 3 Years ago
Grade 12th pass
