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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) km/hr Rate upstream = (x – 3) km/hr According to the question, y/(x + 3) = 1 --- (i) y/(x – 3) = 3/2 --- (ii) On dividing equation (i) by (ii), (x – 3)/(x + 3) = 1/(3/2) = 2/3 3x – 9 = 2x + 6 x = 9 + 6 = 15 kmph
What does 'A' in ANSI stand for ____________.
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Pipe X can fill a tank on its own in 12 hours, while Pipe Y can fill the same tank individually in 20 hours. Both pipes X and Y o...
A collection of related files is called a______.
A merchant mixes two varieties of rice, one costing ₹55 per kg and the other costing ₹80 per kg, and sells the mixture at ₹75 per kg, making a pro...
6, 8, 15, 44, ?, 1134.
How many words are formed from the letters of the word CHAMPION when vowels (A, I, O) always are together?
Which of the following functions is not one-one?
If sets A and B contain 4 and 5 elements respectively, then the total number of binary relations from A to B is:
28, 52, 84, 124, 172, ?.