UP TGT Mathematics Commercial Mathematics Test Series - Part 4

A boat goes 12 km downstream in 48 minutes. If the speed of the current is 2 km/h, what is the speed of the boat in stil...

Type: MCQ • Marks: 1
A boat goes 12 km downstream in 48 minutes. If the speed of the current is 2 km/h, what is the speed of the boat in still water?
Options
A. 1) 11
B. 2) 13
C. 3) 15
D. 4) 17
Explanation
Downstream speed = 12 km / (48/60 h) = 15 km/h. Speed in still water = Downstream speed - Current speed = 15 - 2 = 13 km/h.
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