The diameter of a garden roller is 5.6 m and it is 1.5 m long. The area it will cover in 10 revolution is–
A.268 $m^2$
B.263 $m^2$
C.266 $m^2$
D.264 $m^2$
6 men can complete a piece of work in 14 days. 14 women can complete it in 12 days while 28 children can complete the same piece of work in 9 days. In how many days can 8 men, 2 women and 5 children complete the same piece of work?
Two trains, A and B, start from stations xand yand move towards stationsy and x respectively. After passing each other, they take 5 hrs 30 min and 2 hrs 45 min to reach y and x respectively. If the train A is moving at a speed of 36 km/hr, then the speed of the train B is –
On walking at ($14\over11$)$^{th}$ of his usual speed, a boy reaches 4 minutes earlier to his school. Find the usual time taken by him to reach the school