allerySpeeds of A and B are 3 : 4. B needs 2 hours less on the same route. A needs
A6.5 hours
B7 hours
C8 hours
D6 hours
Answer & Solution
Correct answer: C. 8 hours
Times are in ratio 4 : 3, so one part is 2 hours and A takes 4 x 2 = 8 hours.
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