If the Cost of Living Index rises by 10%, a wage earner's real income remains unchanged only if nominal wages increase by: MCQ with Answer and Explanation

If the Cost of Living Index rises by 10%, a wage earner's real income remains unchanged only if nominal wages increase by:
A. 5%
B. 20%
C. 15%
D. 10%
Answer: Option D
Solution (By JKSSB Mock Tests)
Real income = Nominal income / Price index. To keep real income constant when prices rise 10% (index ×1.10), nominal income must also rise 10% (×1.10), so the ratio remains unchanged.

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Practice More Statistics Questions

Question #1
Which index number formula satisfies the circular test?
A. Paasche index
B. Laspeyres index
C. Simple geometric mean of price relatives with fixed base
D. Fisher index

Correct Answer: Option C


Explanation:
Fixed base simple geometric mean of relatives satisfies circular test; L, P, F do not.

This question belongs to: Accountancy and Statistics Statistics
Question #2
If a fair die is rolled twice, the probability that the first roll is a 4 and the second roll is a 5 is:
A. 1/36
B. 1/12
C. 1/18
D. 1/6

Correct Answer: Option A


Explanation:
Independent events: (1/6)×(1/6)=1/36.

This question belongs to: Accountancy and Statistics Statistics
Question #3
In a 2×2 table, if (AB)=100, (Aβ)=150, (αB)=200, (αβ)=250, the total N is:
A. 800
B. 600
C. 900
D. 700

Correct Answer: Option D


Explanation:
N = sum of all ultimate class frequencies = 100 + 150 + 200 + 250 = 700. This is the total population classified by the two attributes.

This question belongs to: Accountancy and Statistics Statistics