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SSC CGL Exam  >  SSC CGL Tests  >  12 Min Test: Averages - 1 - SSC CGL MCQ

12 Min Test: Averages - 1 - SSC CGL MCQ


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15 Questions MCQ Test - 12 Min Test: Averages - 1

12 Min Test: Averages - 1 for SSC CGL 2025 is part of SSC CGL preparation. The 12 Min Test: Averages - 1 questions and answers have been prepared according to the SSC CGL exam syllabus.The 12 Min Test: Averages - 1 MCQs are made for SSC CGL 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 12 Min Test: Averages - 1 below.
Solutions of 12 Min Test: Averages - 1 questions in English are available as part of our course for SSC CGL & 12 Min Test: Averages - 1 solutions in Hindi for SSC CGL course. Download more important topics, notes, lectures and mock test series for SSC CGL Exam by signing up for free. Attempt 12 Min Test: Averages - 1 | 15 questions in 12 minutes | Mock test for SSC CGL preparation | Free important questions MCQ to study for SSC CGL Exam | Download free PDF with solutions
12 Min Test: Averages - 1 - Question 1
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A company has 80 employees. The average income of 30 of them is Rs. 48,000 and the average income of the rest of them is Rs. 30,000. What is the average income of all the employees of the company?

Detailed Solution for 12 Min Test: Averages - 1 - Question 1


Hence, Option D is correct.

12 Min Test: Averages - 1 - Question 2
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20 kg of rice costing Rs. 30 per kg is mixed with 130 kg of rice costing Rs. 75 per kg. What is the average per kg price of the mixture?

Detailed Solution for 12 Min Test: Averages - 1 - Question 2


Hence, Option A is correct.

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12 Min Test: Averages - 1 - Question 3
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The average number of visitors in a museum on each Sunday is 420 and the average number of visitors in the museum on any other day is 210. What is the average number of per day visitors in the whole month of April, which starts on Saturday?

Detailed Solution for 12 Min Test: Averages - 1 - Question 3

Sundays → 2nd, 9th, 16th, 23rd and 30th (5 Sundays)

Hence, Option C is correct.

12 Min Test: Averages - 1 - Question 4
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In a year, the average monthly expenditure of Rajat in the first 5 months is Rs. 21,000, in the next 4 months is Rs. 24,000 and in the last three months is Rs. 12,000. If he saves overall Rs. 1,80,000 in the whole year, what is his average monthly income?
Detailed Solution for 12 Min Test: Averages - 1 - Question 4

Total income of the year = 5 × 21,000 + 4 × 24,000 + 3 × 12,000 + 1,80,000 = 4,17,000

Hence, Option B is correct.

12 Min Test: Averages - 1 - Question 5
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32 boys and 40 girls spend an average amount of Rs. 400. If the average amount spent by each boy is Rs. 500, what is the average amount spent by each girl?
Detailed Solution for 12 Min Test: Averages - 1 - Question 5


Hence, Option D is correct.

12 Min Test: Averages - 1 - Question 6
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6 persons are sitting in a car. The average weight of all six persons is 72 kg and the average weight of the car and all six persons is 180 kg. What is the weight of the car?
Detailed Solution for 12 Min Test: Averages - 1 - Question 6

Weight of the car = (180 × 7 – 72 × 6) = 828 kg
Hence, Option B is correct.

12 Min Test: Averages - 1 - Question 7
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A man bought 17 articles for Rs. 480 each, 15 articles for Rs. 600 each and 18 articles for Rs. 900 each. What is the average cost price per article?
Detailed Solution for 12 Min Test: Averages - 1 - Question 7


Hence, Option A is correct.

12 Min Test: Averages - 1 - Question 8
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What is the average of all the composite numbers between 11 and 30?
Detailed Solution for 12 Min Test: Averages - 1 - Question 8

Prime numbers between 1 and 30 →13, 17, 19, 23 and 29 (5)
Rest are prime numbers.
Total numbers 12 to 29 = 18
Total composite numbers = 13

Hence, Option A is correct.

12 Min Test: Averages - 1 - Question 9
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Find the average of 6, 0.06, 66.66, 60.60, 600.60 and 6000?
Detailed Solution for 12 Min Test: Averages - 1 - Question 9


Hence, Option B is correct.

12 Min Test: Averages - 1 - Question 10
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The combined amount spent on 30 books and 120 notebooks is Rs. 15,000. If the price of each book is Rs. 400, what is the price of each notebook?
Detailed Solution for 12 Min Test: Averages - 1 - Question 10


Hence, Option D is correct.

12 Min Test: Averages - 1 - Question 11
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The average weight of a group of 14 persons is 40 kg. One more person joins the group and the average weight becomes 41.50 kg. What is the weight of the new person?
Detailed Solution for 12 Min Test: Averages - 1 - Question 11

Reqd. weight = 41.50 × 15 – 14 × 40 = 62.50 kg
Hence, Option C is correct.

12 Min Test: Averages - 1 - Question 12
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The average of 80 numbers is 105. The average of the first 21 numbers is 104 and that of the next 57 numbers is 103. What is the average of the last two numbers?
Detailed Solution for 12 Min Test: Averages - 1 - Question 12

The average of the last two numbers

Hence, Option A is correct.

12 Min Test: Averages - 1 - Question 13
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The average of 20 numbers is 41. The average of the first 8 numbers is 39 and that of the last 13 numbers is 43. What is the 8th number?
Detailed Solution for 12 Min Test: Averages - 1 - Question 13

8 × 39 + 13 × 43 = 871
Since the 8th number came twice, it is added two times.
So the answer = 871 – 20 × 41 = 51
Hence, Option A is correct.

12 Min Test: Averages - 1 - Question 14
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What is the average of all the numbers between 5 and 78, which can be divided by 6?
Detailed Solution for 12 Min Test: Averages - 1 - Question 14

Between 5 and 78:
First number = 6
Last number = 72

Hence, Option D is correct.

12 Min Test: Averages - 1 - Question 15
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There are 17 persons in a group. The average age of 16 persons among them is 60.50 years and the age of 17th person is 8 years more than the average age of all the 17 persons. What is the age of the 17th person?
Detailed Solution for 12 Min Test: Averages - 1 - Question 15

Let the average age of all the 17 persons = X years
Age of 17th persons = X + 8 years 
16 × 60.50 + X + 8 = 17 × X
976 = 16X 
X = 61 
So the answer = 61 + 8 = 69 years
Hence, Option D is correct.

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