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5 X 3 =151. Nagma can swim 100 metres in 3 minutes 15 seconds and Lata in 2 minutes 55is faster and by how many seconds?​

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Answer:

\large\mathcal{\red{QUESTION :-}}

Nagma can swim 100 metres in 3 minutes 15 seconds and LATA in 2 minutes 55

is faster and by how many seconds?

\large\mathcal{\red{Answer :-}}

Velocity of man =25 m/min when no stream and 20 m/min when there is water flow of speed x m/min.

Hence, 25²- x² = 20

∴x=15 m/min=0.25 m/s



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