Question : The wages of workers (W1, W2, W3, W4, W5, W6) for different tasks (T1, T2, T3) are given:
What is the difference in average wages per worker for task T1 and task T3?
Option 1: $\frac{1}{3}$
Option 2: $\frac{1}{2}$
Option 3: $\frac{2}{3}$
Option 4: $\frac{1}{4}$
Correct Answer: $\frac{1}{3}$
Solution :
As per the given graph,
The number of workers = 6
The total number of wages for T3 = 3 + 4 + 5 + 4 + 3 + 4 = 23
The average for T3 = $\frac{23}{6}$
The total number of wages for T1 = 4 + 2 + 3 + 4 + 5 + 3 = 21
The average for T3 = $\frac{21}{6}$
The required difference = $\frac{23}{6}$ – $\frac{21}{6}$ = $\frac{2}{6}$ = $\frac{1}{3}$
Hence, the correct answer is $\frac{1}{3}$.
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