If 12a + 3b = 1 and 7b - 2a = 9, what is the average of a and b? 0.1

1. If 12a + 3b = 1 and 7b - 2a = 9, what is the average of a and b? 0.1

[Officer 2018 [MCQ] : 2018]

1. 0.5

2. 1

3. 2.5

Answer

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