Ratio between speed of boat in still water to speed of stream is 5 : 2. If 224 km is travelled by downstream in 4 hours then find the difference between speed of boat in still water and speed of stream?
24 km/hr
22 km/hr
28 km/hr
24 km/hr
Explanation:
Let the speed of boat in still water and speed of stream be 5x and 2x respectively.
According to the question,
$\dfrac{224}{4}=5x+2x$
x=$\dfrac{224}{7} \times 4 $
x=$\dfrac{32}{4}=8$
Required difference =5x-2x=3x
3x=24 km/hr
Let the speed of boat in still water and speed of stream be 5x and 2x respectively.
According to the question,
$\dfrac{224}{4}=5x+2x$
x=$\dfrac{224}{7} \times 4 $
x=$\dfrac{32}{4}=8$
Required difference =5x-2x=3x
3x=24 km/hr