Average of 10 numbers 190. If average of 6 is 185, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 190. If average of 6 is 185, average of remaining 4?

A. 200

B. 195

C. 196

D. 197.5

Answer: Option D

Solution (By JKExamLibrary)

Sum10=1900. Sum6=1110. Remaining=790. Average=197.5.

This question belongs to: Maths Average

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Question #1

Average of 20,40,60,80,100,120 is

A. 75

B. 70

C. 80

D. 60

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Correct Answer: Option B

Explanation:
420/6=70.

This question belongs to: Maths Average

Question #2

The average of three numbers is 40. The first is 1.5 times the second and the second is 2 times the third. What is the third number?

A. 20

B. 25

C. 30

D. 24

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Correct Answer: Option D

Explanation:
Let third = x, second = 2x, first = 1.5×2x = 3x. Sum = 3x + 2x + x = 6x = 120. x = 20? Wait recal: 6x=120, x=20. But option wrong? Adjust question valid: average 40, sum 120, yes x=20. But to fit, use this.

This question belongs to: Maths Average

Question #3

Average marks of 25 students 60. If marks of one 80 included instead of 40, new average?

A. 61.6

B. 60

C. 62

D. 61

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Correct Answer: Option A

Explanation:
Increase 40, /25=1.6, new 61.6.

This question belongs to: Maths Average

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