The length of a rectangular blackboard is three times its width if the width is 1.5 m find its area also find the cost of painting the blackboard at the rate of rupees 5.50 per sq. m
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Answer:
Rs.37.125
Step-by-step explanation:
Width of rectangular board = 1.5 m
The length of a rectangular black board is three times its width
Length of rectangular board = 3(1.5)=4.5 m
Area of rectangular board =
Cost of 1 sq.m. = Rs.5.50
Cost of 6.75 sq.m. =
Hence the cost of painting the blackboard at the rate of rupees 5.50 per sq. m. is Rs.37.125
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