The average of 90,120,150 is MCQ with Answer and Explanation

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The average of 90,120,150 is

A. 120

B. 130

C. 115

D. 110

Answer: Option A

Solution (By JKExamLibrary)

360/3=120.

This question belongs to: Maths Average

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Question #1

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Average of 1 to 50 is

A. 25

B. 25.5

C. 24.5

D. 26

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Correct Answer: Option B

Explanation:
(50×51)/2 /50 =25.5.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers 980. If average of 6 is 975, average of remaining 4?

A. 990

B. 985

C. 986

D. 987.5

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Correct Answer: Option D

Explanation:
Sum10=9800. Sum6=5850. Remaining=3950. Average=987.5.

This question belongs to: Maths Average

Question #3

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Average speed for two equal times at 30 and 50 km/h?

A. 42 km/h

B. 40 km/h

C. 45 km/h

D. 38 km/h

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Correct Answer: Option B

Explanation:
Arithmetic mean for equal time: (30+50)/2=40.

This question belongs to: Maths Average

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