Question

a boat can travel upstream 40 km downstream 60km speed of stream is 15km/h find time taken of boat one side​

Answer 1

Answer:

28km/h

Step-by-step explanation:

Eternal I rise impalpable out of the land and the bottomless sea,”

Identify the figure of speech used in the line –Eternal I rise impalpable out of the land and the bottomless sea,”

Identify the figure of speech used in the line –Eternal I rise impalpable out of the land and the bottomless sea,”

Identify the figure of speech used in the line –Eternal I rise impalpable out of the land and the bottomless sea,”

Identify the figure of speech used in the line –Eternal I rise impalpable out of the land and the bottomless sea,”

Identify the figure of speech used in the line –

Answer 2

Answer:

A boat takes same time to travel 40 km upstream and 60 km downstream.

Speed of the stream = 15 km/hr

Step-by-step explanation:

Let speed of boat in still water be M kmph.

Given,

Speed downstream = M + 15

Speed upstream = M – 15

Then,

⇒ 60/(M + 15) = 40/(M – 15)

⇒ 60M – 900 = 40M + 600

⇒ 20M = 1500

⇒ M = 75

Speed of boat in still water is 75 kmph.

Downstream speed = 75 + 15 = 90 kmph

Time taken = 60/90 = 2/3 hr.