Price of TV increased 30% then decreased 30%. Net change: MCQ with Answer and Explanation
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Question #2
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In an examination, 70% passed in English, 65% in Maths and 15% failed in both subjects. If 300 students passed in both, total number of students was:
Correct Answer: Option A
Explanation:
Failed Eng=30%, Maths=35%. Passed both = 100 - (30+35-15) = 50%. 50% of total = 300 → total = 600.
Failed Eng=30%, Maths=35%. Passed both = 100 - (30+35-15) = 50%. 50% of total = 300 → total = 600.
This question belongs to:
Maths
Percentage
Question #3
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A man's income is 80% of his friend's income. The friend's expenditure is 60% of his income. If the man saves 30% of his income and the friend saves Rs. 4000, what is the man's income?
Correct Answer: Option A
Explanation:
Let friend's income = F. Friend saves 40% of F = 4000 → F = 10000. Man's income = 80% of F = 8000. Man saves 30% of 8000 = 2400. So answer Rs. 8000.
Let friend's income = F. Friend saves 40% of F = 4000 → F = 10000. Man's income = 80% of F = 8000. Man saves 30% of 8000 = 2400. So answer Rs. 8000.
This question belongs to:
Maths
Percentage
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