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If 20% of 40 plus a certain percentage of 80 equals 120, what is that percentage?

Choose the correct answer

Explanation

Calculate 20% of 40, which is 8. Let the unknown percentage be x%. Then, 8 + (x/100) * 80 = 120. Simplifying gives (x/100) * 80 = 112, so x = (112 * 100) / 80 = 140%. Therefore, the correct answer is 140%.

If 20% of 40 plus a certain percentage of 80 equals … — Simplification and Approximation | PakQuizHub