Question
In a fixed time, a boy swims thrice the distance along
the current that he swims against the current. If the speed of the current is 12 km/hr, the speed of the boy in still water isSolution
Let the rate of swimming in still water be x km/hr Rate down-stream = (x + 12) km/hr Rate up-stream = (x – 12) km/hr According to the question, (x + 12) t = 3 (x – 12) × t x + 12 = 3x – 36 x = 24 km/hr

Select a suitable figure from the Answer Figures that would replace the question mark (?) from question figure.
Select the figure which will come next in the following figure series.
Three of the following four figure pairs are alike in a certain way and thus form a group. Which is the one that does not belong to that group?
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A piece of paper is folded and cut as shown below in the question figures from the given answer figures, indicates how it will appear when opened?
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Option figures:
Select the figure that can replace the question mark (?) in the following series.