QUOTE(danielcmugen @ Jul 21 2012, 11:31 PM)
Otak ini saya tak boleh.
A man walked for 20 mins at a speed of 3m/s. Then, he jogged 2400m in 10 mins, and finally walked for another 10 mins before ending his exercise. If his average speed is 2.8/s, calculate the distance he walked in the last 10 mins.
wait..i know this!!!A man walked for 20 mins at a speed of 3m/s. Then, he jogged 2400m in 10 mins, and finally walked for another 10 mins before ending his exercise. If his average speed is 2.8/s, calculate the distance he walked in the last 10 mins.
give me 2 minutes...write down on paper!!!
Jul 21 2012, 11:32 PM

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