Math, asked by raysuhani06, 4 months ago

a boat goes 21km downstream what is the time required to cover it

Answers

Answered by anandmarkam750

13

Answer:

The time taken by the boat to cover 21km upstream with speed x+y kmph is 21x+y hours.

Step-by-step explanation:

The total time taken by the boat to travel 30km upstream and 21km downstream is 6 hours 30 minutes.

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