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Answer : 4 7 : 40 pm Explanation : Answer: D) 7 : 40 pm Explanation: At 1 pm ... Distance between A and B = 2x3.5 = 7 kmsat 2 pm .....Distance between A and B = 7 3.5 - 1 = 9.5 kmsAt 3 pm ....Distance between A and B = 9.5 3.5 - 2 = 11 kms.......At 7 pm distance between A and B = 3 kms.From 7 pm to 8 pm, speed of A = 3.5 kmphspeed of B = 8 kmphRelative speed = 4.5 kmphTime taken by B to meet A = 3/4.5 hrs = 30/45 hrs = 120/3 mins = 40 mins.So meeting time is 7 : 40 PM.

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