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Speed upstream = 15 - 5 = 10 km/h. Speed downstream = 15 + 5 = 20 km/h. Time upstream = 30 / 10 = 3 hours. Time downstream = 40 / 20 = 2 hours. Total time = 3 + 2 = 5 hours. Correct Option: a
In a certain code language, 'vanilla oil salt iodised' is coded as 'aw, gt, tf, qx', 'executive iodised oil' is coded as 'tf, qx, ul' and 'natural oil v...
What is the code for “proposed”?
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