Find the area of a cardboard required to make a rectangular box of 12 cm long, 7.5 cm wide and 4.5 cm high.
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What is area of cardboard needed to make rectangular box 12cm long ,2cmwide and 5cm high. 7.5x sq. increase%= 7.5x sq./6x sq× 100 =125% ok. n electric heater of 1000watt is use for 3 hour for a day . what is cost of using in a month of 25 day . If unit cast equal rupee 4. i have not done this type of questions.
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