If the value of 21a + 21b = 1134, what is the average of a + b ?
Given:
21a + 21b = 1134
Solution:
We need to find the average of (a + b).
Step 1: Factor out 21
21(a + b) = 1134
Step 2: Solve for (a + b)
a + b = 1134 ÷ 21 = 54
Step 3: Find the average
Average = (a + b) ÷ 2 = 54 ÷ 2 = 27
Final Answer: (B) 27
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