The population of a town is 20,000. It increases by 5% annually. What will be the population after 2 years? MCQ with Answer and Explanation
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Question #1
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A number increased by 25% then by 20% becomes 180. Original number:
Correct Answer: Option C
Explanation:
x × 1.25 × 1.2 = 1.5x = 180 → x = 120.
x × 1.25 × 1.2 = 1.5x = 180 → x = 120.
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Maths
Percentage
Question #2
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What is 75% of 120?
Correct Answer: Option D
Explanation:
75% of 120 = (75 / 100) * 120 = 90.
75% of 120 = (75 / 100) * 120 = 90.
This question belongs to:
Maths
Percentage
Question #3
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Two numbers are respectively 30% and 45% more than a third number. The ratio of the two numbers is:
Correct Answer: Option D
Explanation:
Third = 100, first = 130, second = 145. Ratio = 130:145 = 26:29. Wait, 130/145 simplifies dividing by 5 gives 26:29. So ratio 26:29. Option A is 26:29. So answer A. But I had B as 13:15. So I'll set A 26:29. Correct_answer A.
Third = 100, first = 130, second = 145. Ratio = 130:145 = 26:29. Wait, 130/145 simplifies dividing by 5 gives 26:29. So ratio 26:29. Option A is 26:29. So answer A. But I had B as 13:15. So I'll set A 26:29. Correct_answer A.
This question belongs to:
Maths
Percentage
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