A) 25
B) 20
C) 30
D) 40
Correct Answer: B
Solution :
[b] xy = 200, where speed = x km/hr and time = y hr Also, \[\left( x\text{ }+\text{ }5 \right)\text{ }\left( y-2 \right)\text{ }=200\] we get, \[{{x}^{2}}+5x-500=0\] Solving we get, x = 20 km/hrYou need to login to perform this action.
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