A cylindrical shaped roller has a diameter of 1.1 m. and length of 1.667m. if the speed at which the roller rolls is 10.5 revolutions per minute, then the maximum area (in m²) that it can role in an hour is
(a) 3520
(b) 3740
(c) 3630
(d) 3850
Sol:
We will be happy to hear your thoughts