issb mathematics MCQ #14

Boat: 60 km downstream in 3 h, upstream in 5 h. Speed in still water?

issb mathematics MCQ #14

  1. Question 1

    Q1. Boat: 60 km downstream in 3 h, upstream in 5 h. Speed in still water?

    • A) 14 km/h
    • B) 16 km/h
    • C) 18 km/h
    • D) 20 km/h

    Answer: 16 km/h

    Explanation: Downstream 20 km/h, upstream 12 km/h. Still water = (20+12)/2 = 16 km/h.