Three numbers are in ratio 3:4:5. Their average is 24. What is the largest number? MCQ with Answer and Explanation

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

A. 36

B. 30

C. 35

D. 40

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 1410. If average of 9 is 1405, average of remaining 6?

A. 1420

B. 1415

C. 1417.5

D. 1418

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Correct Answer: Option C

Explanation:
Sum15=21150. Sum9=12645. Remaining=8505. Average=1417.5.

This question belongs to: Maths Average

Question #2

The average of 7 numbers is 41. If each number is multiplied by 2, what is the new average?

A. 82

B. 84

C. 41

D. 61.5

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Correct Answer: Option A

Explanation:
New average =41×2=82.

This question belongs to: Maths Average

Question #3

The average weight of 8 students is 42 kg. If a new student joins, the average becomes 44 kg. What is the weight of the new student?

A. 60 kg

B. 56 kg

C. 58 kg

D. 62 kg

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Correct Answer: Option A

Explanation:
Sum of 8 =8×42=336. Sum of 9 =9×44=396. New student's weight =396-336=60.

This question belongs to: Maths Average

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