Boat and stream Quant Quiz for SBI PO PRE & LIC AAO 2019 (Day 41) | 20th March 2019

Quant Quiz for LIC AAO 2019 (Day 36)

Quant Quiz to improve your Quantitative Aptitude for SBI PO & SBI clerk exam quant, IBPS PO quant , IBPS Clerk quant , IBPS RRB quant, and other competitive exams.

Q1. A person can row 8 km upstream and 24 km downstream in 4 hrs. He can row 12 km downstream and 12 km upstream in 4 hrs. In what time it can row 144 km downstream and 40 km upstream?

A) 22 hours

B) 20 hours

C) 16 hours

D) 12 hours

E) 24 hours

Q2. A motor boat can travel at 10 km/h in still water. It travelled 91 km downstream in a river and then returned, taking altogether 20 hrs. . Find the rate of flow of the river?

A) 4 km/hr

B) 5 km/hr

C) 7 km/hr

D) 3 km/hr

E) 2 km/hr

Q3. A boat takes 26 hours for travelling upstream from point A to point B and coming back to point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 16kmph, what is the total distance covered by the boat? 

A) 320 km

B) 364 km

C) 360 km

D) 300 km

E) 240 km

Q4. The speed of a stream is 2 km/hr between 3 pm to 6 pm and 3 km/hr on all other times. The speed of a boat in still water is 18 km/hr. The boat starts at 2 pm and has to go 47 km upstream. At what time boat will reach its destination?

A) 5.15 pm

B) 5 pm

C) 5.45 pm

D) 5.40 pm

E) 5.05 pm

Q5. A motorboat can go 120 km upstream and return the same distance in 25 hours. If the speed of the stream is 2 km per hour then find the speed of the motorboat in upstream?

A) 4 km/hr

B) 6 km/hr

C) 8 km/hr

D) 8 km/hr

E)

Q6. Ratio of speed of boat in still water to speed of stream 8 : 1. 67.5 km is travelled downstream in 2.5 hours. Difference between speed of boat in still water and speed of stream?

A) 21 km/hr

B) 18 km/hr

C) 12 km/hr

D) 10 km/hr

E) 24 km/hr

Q7. If the ratio of speed of boat in downstream and speed of stream is 9 : 1, speed of current is 3 km per hr, What would be the distance travelled in upstream by the boat in 5 hours?

A) 100 km

B) 125 km

C) 115 km

D) 110 km

E) 105 km

Q8. In upstream, the speed of a motorboat is decreased by 20% of its speed in still water. The motorboat can go 60 km upstream and return the same distance downstream in 12.5 hours. How much time it will take to go 75 km in still water?

A) 7 hours 24 minutes

B) 6 hours 30 minutes

C) 5 hours 30 minutes

D) 7 hours 30 minutes

E) 8 hours 30 minutes

Q9. The uniform speed of a motorboat in upstream is 12 km per hour and its downstream speed is 18 km per hour. The motorboat goes from point P to point Q in upstream and returns the same distance in downstream. What is its average speed of the entire journey? (the speed of the motorboat and stream was uniform during the entire journey)

A) 12.8 km/hr

B) 14.4 km/hr

C) 11.8 km/hr

D) 12 km/hr

E) 15.2 km/hr

Q10. A motorcyclist takes 2 hour more to go uphill than to come downhill. If the ratio of his speeds to come downhill to go uphill is 5 : 4 then how total how much time will he take in the entire journey? (the total distance to go uphill is same as that of come downhill) 

A) 16 hours

B) 14 hours

C) 12 hours

D) 18 hours

E) 8 hours

Solutions

 

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Q4. Ans()

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Q5. Ans()

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