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Question 95Length and breadth of a bulletin board are r cm and t cm, respectively.(i) What will be the length (in cm) of the aluminium strip required to frame the board, if 10 cm extra strip is required to fix it property.(ii) If x nails are used to repair one board, then how many nails will be required to repair 15 such boards?(iii) If 500 sq cm extra cloth per board is required to cover the edges, then what will be the total area of the cloth required to cover 8 such boards?(iv) What will be the expenditure for making 23 boards, if the carpenter charges Rs. x per board?

Answer»

Question 95



Length and breadth of a bulletin board are r cm and t cm, respectively.



(i) What will be the length (in cm) of the aluminium strip required to frame the board, if 10 cm extra strip is required to fix it property.



(ii) If x nails are used to repair one board, then how many nails will be required to repair 15 such boards?



(iii) If 500 sq cm extra cloth per board is required to cover the edges, then what will be the total area of the cloth required to cover 8 such boards?



(iv) What will be the expenditure for making 23 boards, if the carpenter charges Rs. x per board?





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