A telephone cable is to be run from a junction point on the
bank of a river 900 meters wide to an office that is
located 3000 meters downstream on the opposite bank. If the
cost of laying cable under water is Rs. 5 per meter and
that of laying overhead on land is Rs. 4 per meter, find
the point downstream where the cable is to cut across the
river.
(a) 450 (b) 1800 (c) 2800 (d)
2100 (e) 2700
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Answer Posted / bravobull
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