Wednesday, September 7, 2016

Bank Preparation 248

40. How many times do the hands of a clock coincide in a day?
a) 20 b) 21 c) 22 d) 24 e) None of these

41. A boat sails 15 km of a river towards upstream in 5 hours. How long will it take to cover the
same distance downstream, if the speed of current is one-fourth the speed of the boat in still
water :
a) 1.8 h b) 3 h c) 4 h d) 5 h e) None of these

42. A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is :
a) 2.5 km/hr b) 4.2 km/hr c) 5 km/hr d) 10.5 km/hr e) None of these

43. A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr,
find the time taken by the boat to go 68 km downstream.
a) 2 hours b) 3 hours c) 4 hours d) 5 hours e) None of these

44. If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 3 kmph, then the
speed of the boat in still water is :
a) 4.2 km/hr b) 9 km/hr c) 13 km/hr d) 21 km/hr e) None of these

45. A motor boat whose speed is 15 km/hr in still water goes 30 km downstream and comes back
in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is :
a) 4 b) 5 c) 6 d) 10 e) None of these