# Aptitude - Boats and Streams - Discussion

Discussion Forum : Boats and Streams - General Questions (Q.No. 1)

1.

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.

Answer: Option

Explanation:

Speed downstream = (13 + 4) km/hr = 17 km/hr.

Time taken to travel 68 km downstream = | 68 | hrs = 4 hrs. | |

17 |

Discussion:

42 comments Page 1 of 5.
Nikita said:
6 days ago

Relative speed = B + w = 15km/hr.

T = D/Relative speed,

T = 68/15=4hours.

T = D/Relative speed,

T = 68/15=4hours.

Ammu S said:
1 year ago

thank you everyone for the explanation.

(9)

Madhu said:
1 year ago

Speed(s) = boat speed(u) + stream speed(v) = 13 + 4 = 17km/h and distance = 68km;

We know that speed = distance/time.

But we have to find the time then,

Time = distance/speed.

Time = 68/17 = 4 hours.

We know that speed = distance/time.

But we have to find the time then,

Time = distance/speed.

Time = 68/17 = 4 hours.

(14)

Dharmendra said:
1 year ago

In this question, we have seen boat and steam both speeds are in one side so we have to include both speeds [13+4]=17 and distance is 68.

So, 68Ã·17 = 4hour.

So, 68Ã·17 = 4hour.

(4)

Hunde Namomsa said:
2 years ago

Thanks everyone for explaining the answer.

(3)

Tanisha said:
3 years ago

Thanks @Srikant.

(2)

Hanumanthu vinayakarao said:
4 years ago

Distance = speed / time.

Then time = distace/ speed.

Speed = boat speed+stream speed.

Speed = 13+4=17 distance = 68.

D = 68/17 = 4hrs.

Then time = distace/ speed.

Speed = boat speed+stream speed.

Speed = 13+4=17 distance = 68.

D = 68/17 = 4hrs.

(2)

Bhushan roy said:
4 years ago

Thanks for the nice explanation.

Venky said:
4 years ago

Thanks to all for giving an explanation.

MD ABDUL KHABIR said:
4 years ago

Thank you all for explaining it clearly.

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