Question (17/75)
A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is ?(A) 4
(B) 9
(C) 12
(D) 17
Question (18/75)
A ship had provision of food for 150 men for 45 days. After 10 days 25 men left the ship. The number of days for which the remaining food will last is ?(A) 40 Days
(B) 42 Days
(C) 45 Days
(D) 50 Days