Question

The speed of a boat in still water is 17.5 km/h and the rate of the current of the stream
is 2.5 km/h. Find the distance travelled downstream in 24 minutes.​

Answer 1

Answer:

130 km

Description for Correct answer:

Rate downstream of boat = 17.5 + 2.5 = 20 kmph

Rate upstream of boat = 17.5 - 2.5 = 15 kmph

Distance XY = x km.

∴ Distance YZ = 2x5 km.

Total time = 429 minutes

= 7320 hours = 14320 hours

∴x20+2x5×15=14320

[ ∵DistanceSpeed=Time ]

=> x4+2x15=1434

=> 15x+8x60=1434

=> 23x=143×15

=> x = 143×1523 = 93 km.

∴ Total distance = x + 2x5=7x5

= 7×935 = 130 km.

Answer 2

Answer:

hatt lallu

Step-by-step explanation:

mar denge tamacha