Mathematics
NULL
Medium
Question
A man buys milk and, after adding water, sells the mixture at the same rate per litre. In what ratio must he mix water to milk to gain 20%?
A
1 : 5
✓ Official correct answer
B
1 : 20
C
2 : 5
D
1 : 6
Community credibility
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A
1 : 5
No member explanations yet for this option.
B
1 : 20
No member explanations yet for this option.
C
2 : 5
No member explanations yet for this option.
D
1 : 6
No member explanations yet for this option.
Explanation
To gain 20% at the same selling rate, water : milk = 1 : 5.