Question

An insect climbs up 5 cm every second on a 60 CM vertical rod and then falls down 2 CM over the next second how many seconds will it take to climb the rod

Answer 1

Hey

Every two seconds, the insect climbs up 3 cm

In 30 seconds, the insect climbs up 15*3 = 45 cm

In 36 seconds, the insect climbs up 18*3 =54 cm

In 38 seconds, the insect climbs up 19*3 = 57 cm

Now, in the next second it will climb up 5 cm.


Total distance climbed up by the insect in 39 seconds = 57 + 5 = 62 cm

Total time taken = 39 seconds


i hope its you
mark branilest