Question : The given table represents the population of different villages.
J denotes the average number of males in villages A, B, and C. K denotes the average number of females in villages B, C, and D. What is the average of J and K?
Option 1: 1289.17
Option 2: 1279.62
Option 3: 1278.36
Option 4: 1288.62
Correct Answer: 1289.17
Solution : First, we calculate J, the average number of males in villages A, B, and C. J $= \frac{1500 + 1460 + 1105}{3} = 1355$ Next, we calculate K, the average number of females in villages B, C, and D. K $= \frac{1320 + 1180 + 1170}{3} = 1223.33$ Finally, the average of J and K is given by: $= \frac{1355 + 1223.33}{2} = 1289.17$ Hence, the correct answer is 1289.17.
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