Reading a clock

In your book, Maths Mela (Chapter 12), three friends, Raghu, Raghav and Rani, read the time on three clocks. Only one of them gets all three right. To read a clock correctly, remember: the short hand shows the hour, and the long hand shows the minutes.

The long hand counts in fives. When it points at 1, it is 5 minutes past the hour; at 2, 10 minutes; at 3, 15 minutes; at 6, 30 minutes; at 7, 35 minutes. At 12, it is exactly on the hour.

On the first clock, the short hand points at 4 and the long hand at 12: it is 4:00. On the second, the short hand is just past 5 and the long hand points at 7: it is 5:35. On the third, the short hand is just past 7 and the long hand points at 3: it is 7:15. Rani read 04:00, 05:35 and 07:15, so Rani is right!

Raghav mixed up the hands. He read the long hand as the hour and the short hand as the minutes, so he got 12:20, 07:25 and 03:35. Raghu mixed up the hands too, and he also forgot to count the minutes in fives: for the first clock he read 12:04, and for the third 03:07.