The speed of a boat in still water is 15 km h- 1 and the rate of current is 3 km h- 1 . The distance travelled downstream in 12 minutes is

Question

The speed of a boat in still water is 15 km h- 1 and the rate of current is 3 km h- 1 . The distance travelled downstream in 12 minutes is (A)  text1.2km (B)  text1.8km (C)  text2.4km (D)  text3.6km

Tardigrade Admin · Accepted Answer

Speed downstream =(.15 + 3.)kmph=18kmph Distance travelled =(18 × (12/60))km= text3.6km

Q. The speed of a boat in still water is $15 km h^{- 1}$ and the rate of current is $3 km h^{- 1}$ . The distance travelled downstream in $12$ minutes is

$1.2 km$

$1.8 km$

$2.4 km$

$3.6 km$

Speed downstream $= (15 + 3) km p h = 18 km p h$
Distance travelled $= (18 \times \frac{12}{60}) km = 3.6 km$

Q. The speed of a boat in still water is 15kmh−1 and the rate of current is 3kmh−1 . The distance travelled downstream in 12 minutes is

1.2km

1.8km

2.4km

3.6km