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प्रश्न
Length and breadth of a bulletin board are r cm and t cm, respectively.
If x nails are used to repair one board, how many nails will be required to repair 15 such boards?
योग
उत्तर
We have given, length of the board = r cm and breadth = t cm.
Number of nails required to repair 1 board = x.
∴ Number of nails required to repair 15 boards = 15 × x = 15x.
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अध्याय 7: Algebra - Exercise [पृष्ठ ११४]
