(i) A steamer goes downstream and covers the distance between two places A and B in 4 hours while it
covers the same distance upstream in 6 hours. If the speed of the stream is 2 km/hr, find the speed of
the streamer in still water. [2]
(ii) In a two-digit number, digit in units place is thrice the digit in tens place. If 54 is added to it, digits are
reserved. Find the number.
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not knowing the answer so sorry
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