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Let the speed of boat in still water be x km/hr and the distance be y km. Rate downstream = (x + 3.5) km/hr Rate upstream = (x – 3.5) km/hr According to the question, y/(x + 3.5) = 2 --- (i) y/(x – 3.5) = 5/2 --- (ii) On dividing equation (i) by (ii), (x – 3.5)/(x + 3.5) = 2/(5/2) = 4/5 5x – 16.5 = 4x + 15 x = 16.5 + 15 = 31.5 kmph
Select the option in which the given figure is embedded (rotation is NOT allowed)
Which of the following groups of letters when sequentially placed from left to right will complete the given series?
Select the letter cluster that will come next in the following series.
MNOP, HIJK, _______
Read the direction carefully and answer the following question.
Eva is ranked 3rd from the top, while Vicky is ranked 7th...
Piyush ranked 28th from the top and 54th from the bottom in his class. How many students are there in his class?
Select the figure that will come in place of the question mark (?) in the following figure series.
If 7 * 5 @ 10 # 20 = 370 and 4 * 3 @ 5 # 30 = 90, then
2 * 3 @ 4 # 5 = ?