The sum of first 17 terms of the series 5, 9,13, 17 , .....
A
529
B
462
C
629
D
523
Correct Answer: 629
Speed of man in still water, x = 6 km/h Speed of current, y = 2 km/h Let distance = M According to question, Upstream time = Downstream time + 3 Or, M/4 = M/8 + 3 Or, 2M - M = 24 Or, M = 24 So, the distance is 24 km.