A watch gains 3 seconds every 2 minutes. If it was set right at 12:00 AM. What time will it show at 12:00 noon.

A watch loses 10 seconds in every 3 minutes and was set right at 9:00 am. If it shows 5:30 pm in the same day. What is the correct time?

How much does a watch gain or lose per day, if its hands coincide every 66 minutes.

A watch which loses 10 minutes every hour was set right at 6:00 am on Sunday. When will it show correct time again?

Two watches show same time at 9 am Monday. The first clock loses 5 minutes every 1 hour and the second gains 5 minutes every hour. When will they both show same time again?