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Percentage Practice Test 5 with solutions
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© examsnet.com
Question : 4
Total: 40
Milk contains 5% water. What quantity of pure milk should be added to 10 litres of milk to reduce this to 2%?
5 litres
7 litres
10 litres
15 litres
Validate
Solution:
Let x litre of the milk be added, then
95
100
×
10
+
x
=
98
100
(
10
+
x
)
⇒
9.5
+
x
=
9.8
=
0.98
x
⇒
0.02
x
=
0.3
⇒
x
=
15
litres
© examsnet.com
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