In a mixture of 120 litres, the ratio of milk and water is 2:1. How much water is added to change the ratio to 1:2? MCQ with Answer and Explanation
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Question #1
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A number increased by 15% is 138. The number is:
Correct Answer: Option B
Explanation:
1.15x = 138 → x = 120.
1.15x = 138 → x = 120.
This question belongs to:
Maths
Percentage
Question #2
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A trader marks his goods 80% above cost price and gives a discount of 40%. Find his gain percent.
Correct Answer: Option A
Explanation:
CP=100, MP=180, SP=180×0.6=108, gain 8%.
CP=100, MP=180, SP=180×0.6=108, gain 8%.
This question belongs to:
Maths
Percentage
Question #3
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Candidate A got 60% valid votes, defeated B by 3000 votes. 25% invalid. Total votes:
Correct Answer: Option D
Explanation:
Valid V, margin 0.2V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.
Valid V, margin 0.2V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.
This question belongs to:
Maths
Percentage
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