0.04 as percent is: MCQ with Answer and Explanation
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Question #1
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If the price of sugar increases by 20%, by how much percent must consumption be reduced to keep expenditure constant?
Correct Answer: Option B
Explanation:
Reduction % = (20/120)×100 = 16.67%.
Reduction % = (20/120)×100 = 16.67%.
This question belongs to:
Maths
Percentage
Question #2
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Number increased by 30%. By what % should new number be decreased to get original?
Correct Answer: Option D
Explanation:
Original 100, new 130. Decrease % = (30/130)×100 ≈ 23.08%.
Original 100, new 130. Decrease % = (30/130)×100 ≈ 23.08%.
This question belongs to:
Maths
Percentage
Question #3
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The price of a rare artifact was increased by r%. Later, the new price was decreased by r%. If the final price of the artifact is Rs. 1, what was its original price in Rs.?
Correct Answer: Option B
Explanation:
Let original price be P. P * (1 + r/100) * (1 - r/100) = 1. P * (1 - r^2/10000) = 1. P * ((10000 - r^2) / 10000) = 1. P = 10000 / (10000 - r^2).
Let original price be P. P * (1 + r/100) * (1 - r/100) = 1. P * (1 - r^2/10000) = 1. P * ((10000 - r^2) / 10000) = 1. P = 10000 / (10000 - r^2).
This question belongs to:
Maths
Percentage
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