allery6 किमी/तास धीमी केल्ल्या ट्रकाक 72 किमी मार्गाचेर 1 अतिरिक्त वर लागता. ताची मूळ गती कितली आशिल्ली?
A20 km/h
B24 km/h
C30 km/h
D36 km/h
Answer & Solution
Correct answer: B. 24 km/h
72/(s-6) - 72/s = 1 s(s-6) = 432 दिता, देखून s = 24 किमी/तास.
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