Dear Readers,
Practice is the key to perfection in Quant, so brush up your skills and test yourself with these 15 questions of Quantitative Aptitude for IBPS RRB PO and Clerk 2017.
Q1. A man can row against the current 3/4 of a kilometre in 15 minutes and returns the same distance in 10 minutes. The ratio of his speed to that of the current is:
(a) 3 : 5
(b) 5 : 3
(c) 1 : 5
(d) 5 : 1
(e) None of these
Q2. A motor-boat, travelling at the same speed, can cover 25 Km upstream and 39 Km downstream in 8 hours. At the same speed, it can travel 35 Km upstream and 52 Km downstream in 11 hours. The speed of the stream is:
(a) 2 Km/h
(b) 3 Km/h
(c) 4 Km/h
(d) 5 Km/h
(e) None of these
Q3. A motor-boat can travel at 10 Km/h in still water. It travelled 91 Km downstream in a river and then returned to the same place, taking altogether 20 hours. Find the rate of flow of river.
(a) 3 Km/h
(b) 4 Km/h
(c) 2 Km/h
(d) 5 Km/h
(e) None of these
Q4. A boat covers 12 Km upstream and 18 Km downstream in 3 hours, while it covers 36 Km upstream and 24 Km downstream in 13/2 hours. What is the speed of the current?
(a) 1.5 Km/h
(b) 1 Km/h
(c) 2 Km/h
(d) 2.5 Km/h
(e) None of these
Q5. A boat takes 9 hours to travel a distance upstream and takes 3 hours to travel the same distance downstream. If the speed of the boat in still water in 4 Km/h, then what is the velocity of the stream?
(a) 4 Km/h
(b) 3 Km/h
(c) 6 Km/h
(d) 2 Km/h
(e) None of these
Q6. Twice the downstream speed is equal to the thrice the upstream speed, the ratio of speed in still water to the speed of the current is:
(a) 1 : 5
(b) 5 : 1
(c) 1 : 3
(d) 2 : 3
(e) None of these
Q7. A boat travels 2 Km upstream in a stream flowing at 3 Km/h and, then returns downstream to the starting point in 30 minutes. The speed of the boat in still water is:
(a) 17 Km/h
(b) 9 Km/h
(c) 13 Km/h
(d) 15 Km/h
(e) None of these
Q8. A boatman can row 2 Km against the stream in 20 minutes and return in 18 minutes. Find the rate of current.
(a) 1/2 Km/h
(b) 2/3 Km/h
(c) 1/3 Km/h
(d) 1/4 Km/h
(e) None of these
Q9. If a man’s rate with the current is 12 Km/h and the rate of the current is 3/2 Km/h, then his rate against the current is:
(a) 13 Km/h
(b) 7 Km/h
(c) 9 Km/h
(d) 10 Km/h
(e) None of these
Q10. A swimmer covers a distance of 28 Km against the current and 40 Km in the direction of the current. If in each case he takes 4 hours, then the speed of the current is:
(a) 3.5 Km/h
(b) 1.5 Km/h
(c) 2.5 Km/h
(d) 4.5 Km/h
(e) None of these
Q11. A person can swim at 15/2 Km/h in stagnant water in a river with 1.5 Km/h current, the person swims to a certain distance and comes back within 50 min. What is the distance between the two points?
(a) 3 Km
(b) 4 Km
(c) 1 Km
(d) 2 Km
(e) None of these
Q12. A boat takes 6 hours to travel from place M to N downstream and back from N to M upstream. If the speed of the boat in still water is 4 Km/h, what is the distance between the two places?
(a) 8 Km
(b) 12 Km
(c) 6 Km
(d) Date inadequate
(e) None of these
Q13. A man can row 30 Km upstream and 44 Km downstream in 10 hours. Also, he can row 40 Km upstream and 55 Km downstream in 13 hours. Find the rate of the current and the speed of the man in still water.
(a) 3 Km/h, 8 Km/h
(b) 3.5 Km/h, 7.5 Km/h
(c) 4.5 Km/h, 6.5 Km/h
(d) 4.5 Km/h, 9.5 Km/h
(e) None of these
Q14. P, Q, R are three towns on a river which flows uniformly. Q is equidistant from P and R. A man rows from P to Q and returns in 10 h. He can row from P to R in 4 h. The ratio of speed of the man in still water to the speed of the current is :
(a) 5 : 3
(b) 3 : 5
(c) 2 : 5
(d) 1 : 2
(e) None of these
Q15. A boatman goes 2 Km against the current of the stream in 1 h and goes 1 Km along the current in 10 min. How long will he take to go 5 Km in stationary water?
(a) 1 hour
(b) 1 hour 15 minutes
(c) 3/2 hours
(d) 40 minutes
(e) None of these
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