Length and breadth of a bulletin
board are r сm and t cm
respectively. 1. What will be the
aluminium strip required to frame
the board? 2. If 10 cm extra strip is
required then what will be the total
length of the strip?3. If X nails are
used to repair one board, how many
nails will be required to repair 15
such boards? 4. what will be the
expenditure for making 23 boards, if
the carpenter charges RS. X per
board. 5. What will be the area of the
board?
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1
Answer:
1 it's perimeter so 2(l+b)
=2 (r+t)
3 X nail for 1 board so
= X * 15 nails for 15 boards
4 X rs for 1 board
= X * 15 rupee for 15 boards
5 area of board
= l*b area of rectangle
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Answer:
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