How many planks of dimensions (5 m X 25 cm x 10 cm) can be stored
in a pit which is 20 m long, 6 m wide and 80 cm deep?
required to construct a wall 8 m long. 6 m high
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Answer:
Volume of one plank = lbh
= 5m × 25 cm × 10cm
= 500 cm × 25cm × 10cm
= 125000cm ^3
volume of pit = 20m × 6m × 80cm
= 2000cm × 600cm × 80cm
= 96000000cm ^3
Total no. of planks = 96000000 ÷ 125000
= 768
Therefore , 60 planks of dimensions ( 5m × 25cm × 10cm ) can be stored in a pit bull which is 20m long 6m wide and 80cm deep.
Hope it will be helpful !!!
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