Question
14, 20, ?, 50, 74,
104 What will come in place of the question mark (?) in the following series?Solution
ATQ, 14 + 6 × 1 = 20 20 + 6 × 2 = 32 32 + 6 × 3 = 50 50 + 6 × 4 = 74 74 + 6 × 5 = 104
A man takes 10 hours to row 21 km upstream from point A to point B and back to A by boat. If he takes the same time to row 7 km downstream as upstream. ...
A man can row 5 km/hr in still water. If the speed of the current is 2 km/hr, it takes 4 hours more in upstream than in the downstream for the same dist...
A boat can cover 150 km in downstream in 5 hours and 121 km in upstream in 11 hours. Find the speed of boat in still water.
A man rows upstream 36 km and downstream 51 km taking 3 hours each. Find the man’s speed in still water.    Â
Boat ‘A’ can cover 100 km in still water in 10 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 2:3 and the sp...
A launch moves 50 km upstream and 180 km downstream in a combined time of 11 hours. The still-water speed of the launch is 10 km/h faster than the strea...
A boat sailor begins rowing from point X, moving against the stream for 30 minutes. After that, he turns around and rows with the stream for another 30 ...
A man can row boat at 9 kmph in still water. If the velocity of the current is 6 kmph and he takes 2 hour to row to a place and come back, how far is th...
A boat travels 30 km upstream and 45 km downstream in 6 hours. If the speed of the stream is 4 km/h and the boat’s speed in still water is 8 km/h, wha...
A submarine can travel a certain distance downstream in 4 hours and the same distance upstream in 8 hours. If the submarine's speed in still water is 12...
Relevant for Exams:
