Rate downstream = 54/6 = 9 km/hr Rate upstream = 54/10 = 5.4 km/hr Now, speed of the stream = (rate downstream – rate upstream)/2 ⇒ (9 – 5.4)/2 = 1.8 km/hr
If all the number 85243679 are arranged in descending order from left to right, the position of how many numbers will remain unchanged?
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Find which one of the given words cannot be made from the letters of the word ‘COMPANIONSHIP’ .
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How many pairs of letters in the word INTERNET has the same number of letters between them as in the English alphabet?
