issb mathematics MCQ #347

Boat speed 12 km/h in still water, stream 4 km/h. Downstream speed?

issb mathematics MCQ #347

  1. Question 1

    Q1. Boat speed 12 km/h in still water, stream 4 km/h. Downstream speed?

    • A) 8 km/h
    • B) 12 km/h
    • C) 16 km/h
    • D) 48 km/h

    Answer: 16 km/h

    Explanation: Downstream speed is boat speed plus stream so 16 km/h. Work each step carefully; ISSB math rewards accuracy under time pressure.