Usha Swims In A 90 M Long Pool. She Covers 180 Min One Minute By Swimming From One End To The Other And Back Along The Same Straight Path.
4 Years Ago
Usha swims in a 90 m long pool. She covers 180 min one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average velocity of Usha.
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