a cardboard is 4.5m long and 3.5m wide what is the cost of painting it on both the sides at the rate of 1.25 pre square metre
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Step-by-step explanation:
first find the area of one side of the board
which is= l x b
= 3.5x 4.5
= 15.75
area of two sides= 15.75 x 2
= 31.5
total cost = area of two sides x cost
= 31.5 x 1.25
= 39.375 Rs
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