The geometric mean of two numbers a and b is 6, and their arithmetic mean is 10. The numbers are: MCQ with Answer and Explanation

Question

Share Report Error

The geometric mean of two numbers a and b is 6, and their arithmetic mean is 10. The numbers are:

A. 4 and 16

B. 2 and 18

C. 3 and 17

D. 8 and 12

Answer: Option B

Solution (By JKSSB Mock Tests)

a + b = 20 and ab = 36. Solving gives 2 and 18 (2 + 18 = 20, 2 × 18 = 36).

This question belongs to: Accountancy and Statistics Statistics

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1

Share Report

The time reversal test is satisfied if P₀₁ × P₁₀ = 1. This ensures:

A. Index uses base year weights

B. Index is free from time bias

C. Index satisfies factor reversal

D. Index is the geometric mean

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option B

Explanation:
Time reversal test checks that the index is symmetrical over time.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Share Report

The process of checking and correcting data for errors before tabulation is called:

A. Editing

B. Analysis

C. Coding

D. Compilation

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option A

Explanation:
Editing involves scrutinizing the collected data to identify and correct errors.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Share Report

The Wholesale Price Index (WPI) excludes:

A. Primary articles

B. Services

C. Fuel and power

D. Manufactured products

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option B

Explanation:
WPI covers only goods; it does not include services, unlike CPI.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs