How long will it take for the hour hand to rotate from big mark 2 to big mark 5?
7 pipelines are required to fill a tank in 1 hour 30 minutes. How long will it take if only 5 pipelines of the same type are used? [ 2 MARKS ]
What fraction of a clockwise revolution does the hour hand turn through when it rotates from: [2 MARKS] a) 3 to 6 b) 6 to 12