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WAEC Mathematics 2025 Paper
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© africaexams.com
Question : 25
Total: 50
A water tank of height
1
2
\frac{1}{2}
2
1
m has a square base of side 1
1
2
\frac{1}{2}
2
1
m. If it is filled with water from a water tanker holding 1500 litres, how many litres of water are left in the water tanker? [1000 litres = 1 m
3
^3
3
]
375 litres
3750 litres
37.5 litres
37500 litres
Validate
Solution:
Capacity of water tank = (
1
2
\frac{1}{2}
2
1
×
3
2
\frac{3}{2}
2
3
×
3
2
\frac{3}{2}
2
3
) m
3
^3
3
=
9
8
\frac{9}{8}
8
9
m
3
^3
3
=
9
8
\frac{9}{8}
8
9
× 1000 litres = 1125 litres.
Water tankers capacity = 1500 litres Amount of water remaining = (1500 - 1125) litres = 375 litres
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