1000 bricks each 25 centimetres long and 20 centimetres broad are used
in a rectangular courtyard. If the breadth of the courtyard is 5 metres
what will it cost to build a wall around the courtyard at the rate of Rs 3.50
per metre ?
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Answer:
Length of room =20cm
Breadth of room =10cm
The HCF of 20cm and 10cm will be size of square tiles HCF of 20 and 10=10cm
Area of room = 20×10=200cm
2
Area of 1 tile = 10×10=100cm
2
Number of tiles =
100
200
=2
Step-by-step explanation:
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