allery1000 m की दौड़ में A, 10 m/s की चाल से दौड़ता है और 100 m से जीतता है। B किस चाल से दौड़ता है?
A8.5 m/s
B9 m/s
C9.5 m/s
D8 m/s
Answer & Solution
Correct answer: B. 9 m/s
A को 100 सेकंड लगते हैं; B उसी समय में 900 m की दूरी तय करता है, जो कि 9 m/s की चाल है।
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