Qus. 13: A water tank is 5m long , 4m wide and 2m deep . Determine the cost of iron sheet required to make the tank at the rate of Rs. 60 per meter if the sheet is 2m wide.
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Total surface are of tank = 2(lb + bh + hl ) = 2( 12*9+ 9*4 + 4*12)= 2( 108+36+48) = 192*2 = 384 m^2 = Length of sheet required = area/breadth = 384/2= 192 m Now cost of sheet = 192*5 = 960 rs
this method you can solve only changing the value
rohitjain94:
ans yhi Rha hai kya
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Answer:
Step-by-step explanation:
Total surface are of tank = 2(lb + bh + hl )
= 2( 12*9+ 9*4 + 4*12)
= 2( 108+36+48) = 192*2
= 384 m^2
Length of sheet required = area/breadth
= 384/2= 192 m
Now cost of sheet = 192*5 = 960 rs
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