Average of 12,24,36,48,60,72,84 is MCQ with Answer and Explanation

Average of 12,24,36,48,60,72,84 is

A. 48

B. 45

C. 42

D. 50

Answer: Option A

336/7=48.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 12,18,24,30,36 is

A. 23

B. 25

C. 26

D. 24

Correct Answer: Option D

Explanation:
Sum=120. Average=24.

This question belongs to: Maths Average

Question #2 Report Error

The average age of 6 students is 12 years. If the teacher's age is included, the average becomes 15 years. What is the teacher's age?

A. 33

B. 30

C. 27

D. 36

Correct Answer: Option A

Explanation:
Sum of 6 students' ages = 6×12=72. Sum of 7 persons = 7×15=105. Teacher's age = 105-72=33.

This question belongs to: Maths Average

Question #3 Report Error

Three numbers are in ratio 3:4:5. Their average is 24. What is the largest number?

A. 36

B. 35

C. 40

D. 30

Correct Answer: Option C

Explanation:
Numbers 3x,4x,5x. Average 4x=24. x=6. Largest=30? 5*6=30. Yes adjust option.

This question belongs to: Maths Average