In a pattern, if (□ + ◯) = 5, (△ + □) = 7, and (◯ + △) = 8, what will (□ + △ + ◯) equal?
A.
B.
C.
D.
Answer & Solution
Solution:
From the given equations:
- (□ + ◯) = 5
- (△ + □) = 7
- (◯ + △) = 8
Now, add all three equations:
- (□ + ◯) + (△ + □) + (◯
+ △) = 5 + 7 + 8
- 2□ + 2◯ + 2△ = 20
- □ + ◯ + △ = 20 ÷ 2 = 10.
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