find cost of painting a cuboid of dimensions 20cm× 15cm×12cm at the rate of 5 paisa per square centimetre
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area of cuboid =l×b×h
20×15×12
360
rate for per sq. cm =5p=5/100₹
cost of painting =360×5/100
=₹540
20×15×12
360
rate for per sq. cm =5p=5/100₹
cost of painting =360×5/100
=₹540
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