Let the distance be ‘D’ km According to the question, Downstream speed x + y = d/20 or d = 20 (x+y) .......... (i) Upstream speed x-y = d/30 or d = 30(x-y) ........... (ii) Comparing (i) & (ii) 20(x+y) = 30(x-y) 2(x+y) = 3(x-y) 2x + 2y = 3x - 3y x = 5y Hence, y = Speed of the current = 12 km/hour. Speed of boat, x = 5 × 12 = 60 km/hr
What is the code for ‘do’?
If the code for “Nine Power” is “34 89”, then what is the code for the phrase “Ten Eight Power” in the given code language?
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If ‘the last’ is coded as ‘23~V 16%H’, ‘dead smuggling’ is coded as ‘8%Z 28 ^F’, then ‘drop of surge’ may represent which of the...
What is the code for the word “biting” ?
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In a certain code language, FAULT is coded as '60' and HARM is coded as '40', then how is MAGIC coded as in the given language?
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What does ‘kiw’ stand for?
