A man rows 15 km upstream in 5 hours and 25 km downstream in 5 hours. The speed of the current is: Option 1: 2 km/h Option 2: 1 km/h Option 3: 5 km/h Option 4: 3 km/h

Answer: 1 km/h. Solution: Upstream speed is 15/5=3 km/h and downstream speed is 25/5=5 km/h. The speed of the current is half their difference, (5-3)/2=1 km/h.

Arithmetic

Time, Speed & Distance

Easy

applied

A man rows 15 km upstream in 5 hours and 25 km downstream in 5 hours. The speed of the current is:

2 km/h

1 km/h

5 km/h

3 km/h

✅ Correct Option: 2

Upstream speed is $\frac{15}{5}=3$ km/h and downstream speed is $\frac{25}{5}=5$ km/h. The speed of the current is half their difference, $\frac{5-3}{2}=1$ km/h.

2025: 16 May Shift 1

In a 500 m race, the ratio of speeds of two participants, A and B, is 4:5 respectively. If A has a start of 180 m, then the distance by which A wins is:

2025: 14 May Shift 1

Two runners, Ajay and Vijay complete a 600 m race in 38 seconds and 48 seconds respectively. By how many meters will Ajay defeat Vijay?

2026: 22 May Shift 1

A boat can travel 36 km upstream in 5 hours. If the speed of the stream is 2.4 km/hr, how much time will the boat take to cover a distance of 78 km downstream?

2026: 22 May Shift 1

In a kilometer race, A beats B by 30 seconds and B beats C by 15 seconds. If A beats C by 180 m, then

Match List-I with List-II

List-I	List-II
(A) Time taken by A to run 1 km	(I) 250 seconds
(B) Time taken by B to run 1 km	(II) 45 seconds
(C) Time taken by C to run 1 km	(III) 235 seconds
(D) A beats C by	(IV) 205 seconds

Choose the correct answer from the options given below:

2025: 15 May Shift 2

In a 10 km race, A, B and C each run at uniform speed, get the first, second and third position respectively. If A beats B by 1 km and B beats C by 1 km, then, by how much distance A beat C?

2026: 22 May Shift 2

A motor boat can travel 5 km/hr in still water. It travelled 9 km downstream in river and then returned back taking altogether 10 hours. The rate of flow of water in the river is:

A man rows 15 km upstream in 5 hours and 25 km downstream in 5 hours. The speed of the current is:

Solution

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