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The speed of a board is 15 km per hr in still water goes 30 km down strem and comes back in total 4 hr 30 min what is the speed of the stream

Posted by Siri Jagadeesh 3 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Manish Routhan 3 years, 10 months ago

30/x+15(30)/x-15=4.5, 60x/x²-225=4.5

0Thank You

Arun Patel 3 years, 10 months ago

30/X+15 +30/x-15=4.5 60x/x*2 - 225=4.5

1Thank You

ANSWER

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