A boat which has a speed of 5 kmh⁻¹ in still water crosses river of width 1 km long

A boat which has a speed of 5 kmh⁻¹ in still water crosses river of width 1 km along the shortest path in 15 min.The width of the river in kmh⁻¹ is

Options

(a) 1
(b) 3
(c) 4
(d) √41

Correct Answer:

3

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. A coil of N turns and mean cross-sectional area A is rotating with uniform angular
  2. When a radioactive substance emits an ∝ particle, its position in the periodic table
  3. A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
  4. Energy of photon whose frequency is 10¹² MHz will be
  5. Two bullets are fired simultaneously, horizontally and with different speeds