If the geometric mean of two numbers is 12 and one number is 18, the other number is: MCQ with Answer and Explanation

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If the geometric mean of two numbers is 12 and one number is 18, the other number is:

A. 10

B. 6

C. 8

D. 9

Answer: Option C

Solution (By JKSSB Mock Tests)

Geometric mean = √(x×y). Given √(18×y)=12, square both sides: 18y=144, so y=144/18=8. This uses the definition of geometric mean for two values.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The Consumer Price Index (CPI) is used to measure:

A. Change in cost of living for households.

B. Industrial production.

C. Inflation at wholesale level.

D. Foreign exchange reserves.

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Correct Answer: Option A

Explanation:
CPI measures retail price changes affecting households' cost of living.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Information published by the United Nations Statistical Division is considered as:

A. Primary Data

B. Tertiary Data

C. Fictitious Data

D. Secondary Data

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Correct Answer: Option D

Explanation:
Data published by international organizations are secondary sources for researchers who use them for their own studies.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which index number formula uses the unweighted geometric mean of price relatives?

A. Jevons

B. Paasche

C. Laspeyres

D. Fisher

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Correct Answer: Option A

Explanation:
The Jevons index is the geometric mean of the price relatives, giving equal weight to each item.

This question belongs to: Accountancy and Statistics Statistics

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