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# Time and Work Questions for SBI PO PDF:

You can practice BankingÂ Previous year solved papers

Question 1: Three friends J, K and Ljog around a circular stadium and complete one round in 12, 18 and 20 seconds respectively. In how many minutes will all the three meet again at the starting point ?

a) 5
b) 8
c) 12
d) 3
e) None of these

Question 2: The speed of a boat when travelling downstream is 32 Kms. / Hr. , whereas when travelling upstream it is 28 kms/hr. What is the speed of the boat in still water ?

a) 27 Kms./Hr.
b) 29 Kms./ Hr.
c) 31 Kms./ Hr.
d) Cannot be determined
e) None of these

Question 3: If I walk at 4 km/h, I miss the bus by 10 min. If I walk at 5 km/h, I reach 5 min before the arrival of the bus. How far I walk to reach the bus stand?

a) 5 km
b) 5.5 km
c) 6 km
d) 7.5 km
e) None of these

Question 4: The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance travelled down steam in 12 minutes is:

a) 3.3 km
b) 2.9 km
c) 2.4 km
d) 3.6 km
e) None of these

Question 5: An express train travelled at an average speed of 75 km/h stopping for 5 min every 125 km. How long did it take to reach its destination 375 km from the starting point?

a) 6 h 30 min
b) 4 h 45 min
c) 3 h 15 min
d) 5 h 10 min
e) None of these

Question 6: A boatâ€™s speed with the current is 15 kmph and the boatâ€™s speed against the current is 5 kmph. What is the speed of the current?

a) 15 kmph
b) 10 kmph
c) 5 kmph
d) 20 kmph
e) None of the above

Question 7: A 210 m long train takes 6 s to cross a man running at 9 km/h in a direction opposite to that of the train. What is the speed of the train? (in km/h)

a) 127
b) 121
c) 117
d) 108
e) 111

Question 8: A truck covers a distance of 640 km in 10 h. A car covers the same distance in 8 h. What is the respective ratio between the speed of the truck and the car?

a) 3: 4
b) 1: 2
c) 5: 6
d) 6: 7
e) None of these

Question 9: Faisal walks 325 m every day .How many kilometers will he walk in four weeks?

a) 6.2
b) 9.1
c) 8.6
d) 7.8
e) None of these

Question 10: A 280 m long train crosses a platform thrice its length in 6 min 40 s. What is the speed of the train?

a) 3.2 m/s
b) 1.4 m/s
c) 2.8 m/s
d) Cannot be determined
e) None of these

Answers & Solutions forÂ Time and Work Questions for SBI PO PDF:

All the three friends will meet at the starting point again after X seconds, such that X is the LCM of the times taken by J, K and L to complete one round.
=> LCM of 12, 18 and 20 = 180 seconds = 3 minutes.
Hence 3 minutes is the answer.

Let the speed of boat in still water be v and the speed of water be x.
Boat speed while going upstream = v-x = 28
Boat speed while going downstream = v+x = 32
=> 2v = 60 => v = 30
Hence, none of these is the correct answer.

Suppose the required distance be d km/h
Then, d/4 – d/5 = 15min = 1/4 h â‡’ d 1/20 = 1/4 â‡’ d = 5km.

Speed downstream = (15 + 3) kmph = 18 kmph.
Distance traveled =(18Ã—12/60)km = 3.6 km.

Time taken to cover 375 km = (375 / 75)h = 5h
Number of stoppages = 375 / 125 – 1 = 2
Total time to stoppages = (5 Ã— 2 ) min = 10 min
Hence, total time taken = 5 h 10 min

With the current => downstream
Against the current => upstream
Let the speed of the boat be â€˜sâ€™ and the speed of the river be â€˜râ€™.
So, s – r = 5 and s + r = 15
=>2s = 20 => s = 10 and r = 5 kmph
Speed of the current = 5 kmph

Speed of train = x
Relative speed = x + 9(5 / 18) = x + 2.5
Speed = 210 / 6 = 35 m/s
x + 2.5 = 35 => x = 32.5 m/s = 32.5 * (18/5) = 6.5 * 18 = 117 kmph

We know the formula of speed which is Speed = Distance/Time
Speed of a truck = 640/10 = 64
Speed of a car = 640/8 = 80
Ratio of speed of truck and car = 64:80 = 4:5