Math, asked by lakshmiagls, 2 months ago

Speed of the boat in still water is 15 km/hr and
the speed of the current is 7 km/hr. Find the total
time taken by a man rowing to a place at a
distance of 88 km and back.​

Answers

Answered by sanjudnath
2

Answer:

Given :

Speed of boat in still water =15 km/hr 

Let x be speed of the stream in km/hr

Speed of the boat upstream =15−x

Speed of the boat down stream =15+x

Time taken for upstream T1=15−x30

Time taken for downstream T2=15+x30

Given, T1+T2=29

=15−x30+15+x30=29

=30(15−x1+15+x1)=29

=30((15−x)(15+x)15+x÷15−x)=29

=225−x230×

Answered by musmirshah2
0

Answer:

= 15 - 7 = 8 km/hr.

Step-by-step explanation:

Speed of the boat in still water is 15 km/hr and the speed of the current is 7 km/hr. Find the total time taken by a man rowing to a place at a distance of 88 km and back. Sol: The downstream speed is 15 + 7 = 22 km/hr and the upstream speed = 15 - 7 = 8 km/hr.

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