A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power a plant opposite to that of the river and 1500mts away from the power unit. The cost of the
cable below water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per meter. Find the total of laying the cable.
2007-04-20 04:27:33 · 3 answers · asked by yuv 1 in Science & Mathematics ➔ Mathematics
Total distance from power plant to power unit = 1500m
Distance across water = width of river
= 750m
Distance across land = remaining distance
=1500m - 750m
=750m
Cost of cable below water = 15 x 750
=11 250
Cost of cable on land = 12 x 750
= 9 000
Total cost = 11250 + 9000
=20 250
2007-04-20 05:14:11 · answer #1 · answered by Paco 1 · 0⤊ 0⤋
I am assuming that the cable goes directly from the power plant to underwater so that 750 m of the cable is underwater and 750 m of the cable is above ground.
Thus total cost = 750(15+12) =750*27 = 20,250 Rs
2007-04-20 04:47:47 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
Total length of cable = 1500 m.
Total length = 750 under water and 750 m on the ground
laying = 750 ×15 + 780 × 12 = 750 ( 15 +12 ) = 750 × 27 = Rs. 20250
2007-04-20 04:40:55 · answer #3 · answered by Pranil 7 · 1⤊ 0⤋