Boats & Streams · Question 17 · Easy

Mohan rows at 7.5 km/h in still water and the river flows at 1.5 km/h. How long will he take to row 27 km downstream?

  1. 4 1/2 hours
  2. 3 hours
  3. 4 hours
  4. 3 1/2 hours
Answer and explanation

Answer: B. 3 hours

Explanation: Downstream speed = 7.5 + 1.5 = 9 km/h. Time = 27 ÷ 9 = 3 hours.

Previous: A boat's speed in still water is 18 km/h and the river flows at 4 km/h. How… · Next: A boat goes 42 km upstream in 6 hours. Its downstream speed is 13 km/h. What…

Practise boats & streams

Try a fresh set of boats & streams questions with an explanation after every answer, free and without signing up: Boats & Streams practice. Or sit a full placement mock test.

More boats & streams questions

More quantitative aptitude practice

Permutation & Combination · Probability · Data Interpretation · Mensuration · Algebra & Equations · Number System · HCF & LCM · Simplification

LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge