Question

A wall clock gains 2 minutes in 12 hours, while a
table clock loses 2 minutes in 36 hours; both are set
right at noon on Tuesday. The correct time when they
both show the same time next would be
(a) 12:30 night (b) 12 noon
(c) 1:30 night (d) 12 night​

Answer 1

Answer:

(b) 12 noon

Step-by-step explanation:

A wall clock gains 2 minutes in 12 hours --> gains 6 mins in 36 hours;

A table clock loses 2 minutes in 36 hours;

Relative speed is 6+2=8 minutes in 36 hours (difference in 36 hours), which means that if we consider a table clock to stay still then a wall clock will move 8 minutes in 36 hours, so both to show the same time next wall clock should make 12 hours revolution (12*60=720 minutes), which it would make in 720/8 * 36 hours = 135 days.

So, the correct time when they both show the same time next would be exactly after 135 days at 12 noon.

hope it helps ❣️ ❣️

Answer 2

Step-by-step explanation:

12 noon time is answer ok