Subject :IMO Class : Class 7
An insect crawls 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?
A20 seconds
B40 seconds
C39 seconds
D30 seconds
Ans 1:
Class : Class 9
Ans 2:
Class : Class 7
it should be b
Ans 3:
Class : Class 8
Ans 4:
Class : Class 7
Ans 5:
Class : Class 8
Ans 6:
Class : Class 7
Ans 7:
Class : Class 7
it is c only.
Ans 8:
Class : Class 7
Ans is A