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Stacked bars P,Q: 6,8 cm; 1 cm=15 items. Red counts: 30,45. Total non-red?

A120
B135
C105
D150
Answer & Solution
Correct answer: B. 135
The bars represent 90 + 120 = 210 items, of which 30 + 45 = 75 are red, leaving 135 non-red.
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