The average of 7 numbers is 18. If one number is 24, what is the average of the remaining 6 numbers? MCQ with Answer and Explanation

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The average of 7 numbers is 18. If one number is 24, what is the average of the remaining 6 numbers?

A. 18

B. 19

C. 16

D. 17

Answer: Option D

Solution (By JKSSB Mock Tests)

Total = 7×18 = 126. Remaining total = 126−24 = 102. Average = 102/6 = 17.

This question belongs to: Maths Average

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Question #1

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Average of five consecutive odd numbers is 25. What is the largest number?

A. 27

B. 31

C. 29

D. 33

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Correct Answer: Option C

Explanation:
Let numbers be x-4, x-2, x, x+2, x+4. Average = x = 25. Largest = 25 + 4 = 29.

This question belongs to: Maths Average

Question #2

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Average of 825,1100,1375 is

A. 1090

B. 1095

C. 1100

D. 1110

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Correct Answer: Option C

Explanation:
3300/3=1100.

This question belongs to: Maths Average

Question #3

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The average age of 12 students is 20 years. If the age of the teacher is included, the average increases by 1 year. What is the age of the teacher?

A. 31

B. 34

C. 32

D. 33

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Correct Answer: Option D

Explanation:
Total age of students = 12 × 20 = 240. New average = 21. Total age of 13 people = 13 × 21 = 273. Teacher's age = 273 - 240 = 33 years.

This question belongs to: Maths Average

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