If a + b + c = $$\frac{7}{{12}},$$ 3a - 4b + 5c = $$\frac{3}{4}$$ and 7a - 11b - 13c = $$ - \frac{7}{{12}},$$ then what is the value of a + c?
A. $$\frac{1}{2}$$
B. $$\frac{5}{{12}}$$
C. $$\frac{3}{4}$$
D. $$\frac{1}{4}$$
Answer: Option A
This Question Belongs to Arithmetic Ability >> Algebra
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