Average income of 10 persons is Rs. 5000. If one leaves, average becomes Rs. 4800. Income of the person who left? MCQ with Answer and Explanation

Average income of 10 persons is Rs. 5000. If one leaves, average becomes Rs. 4800. Income of the person who left?

A. 6800

B. 7000

C. 7200

D. 6500

Answer: Option A

Sum10=50000. Sum9=43200. Left=6800.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 3 numbers is 20. If the numbers are in the ratio 1:2:3, find the largest.

A. 25

B. 35

C. 30

D. 20

Correct Answer: Option C

Explanation:
Sum=3×20=60. Ratio sum=6. Largest = (3/6)×60=30.

This question belongs to: Maths Average

Question #2 Report Error

The average of a set of 8 numbers is 32. If one number is 50, what is the average of the remaining numbers?

A. 31.00

B. 28.57

C. 30.25

D. 29.43

Correct Answer: Option D

Explanation:
Sum of 8 = 256. Sum of remaining 7 = 256-50=206. Average = 206/7 ≈ 29.43.

This question belongs to: Maths Average

Question #3 Report Error

The average of 24,36,48,60 is

A. 40

B. 45

C. 39

D. 42

Correct Answer: Option D

Explanation:
168/4=42.

This question belongs to: Maths Average