waecmaths question:
A bucket holds 10 litres of waters. How many buckets of water will fill a reservoir of size 8m × 7m × 5m(1 litres = 1000cm3)
Option A:
28
Option B:
280
Option C:
2800
Option D:
28000
waecmaths solution:
100cm = 1m
Volume = length × width × height
Volume = 800cm × 700cm × 500cm =280000000cm3
280000000cm3 to litres gives 280000litres (1000cm3 =1litres)
The number of buckets that will be needed to fill the reservoir is 280000litres ÷10 litres = 28000 bucket (Option D)
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