In a class consisting of 60 students and 5 teachers, each student receives sweets equal to 20% of the total number of students, and each teacher receives sweets equal to 30% of the total number of students. How many sweets were distributed in total? MCQ with Answer and Explanation
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Question #1
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The difference between two numbers is 50. If 40% of the larger number is equal to 60% of the smaller number, find the sum of the two numbers.
Correct Answer: Option B
Explanation:
0.4L = 0.6S → L/S = 3/2 → L = 3k, S = 2k. L - S = k = 50 → k=50. L=150, S=100, sum = 250.
0.4L = 0.6S → L/S = 3/2 → L = 3k, S = 2k. L - S = k = 50 → k=50. L=150, S=100, sum = 250.
This question belongs to:
Maths
Percentage
Question #2
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A man's income is Rs. 12000, he saves 20%. His savings are:
Correct Answer: Option B
Explanation:
20% of 12000 = 2400.
20% of 12000 = 2400.
This question belongs to:
Maths
Percentage
Question #3
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If the radius of a circle is decreased by 30%, the area decreases by:
Correct Answer: Option D
Explanation:
New area = 0.7² = 0.49, decrease 51%.
New area = 0.7² = 0.49, decrease 51%.
This question belongs to:
Maths
Percentage
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