WAEC - Mathematics (2009 - No. 26)
A bucket holds 10 litres of water. How many buckets of water will fill a reservoir of size 8m x 7m x 5m.(1 litre = 1000cm3)`
28
280
2800
28000
Explication
No. of buckets of water = \(\frac{\text{Capacity of reservoir}}{\text{Capacity of buckets}}\)
= \(\frac{800 \times 700 \times 500}{10 \times 1000}\)
= \(\frac{28000 0000}{10000}\)
= 28000
= \(\frac{800 \times 700 \times 500}{10 \times 1000}\)
= \(\frac{28000 0000}{10000}\)
= 28000