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Given: 1st number = 25% less than 3rd number 2nd number = 45% less than by 3rd number Formula used: Percentage increment = increment/initial value × 100 If a quantity (x) is increased or decreased by a%, then Final value of the quantity = (100 ± a)% of x, Where ± shows the increment/decrement Calculation: Let, third number be X 1st number = (100 – 25)% of X ⇒ 75% of X ⇒ 0.75X 2nd number = (100 – 45)% of X ⇒ 55% of X ⇒ 0.55X 2nd number must be increased by = 0.75X – 0.55X ⇒ 0.2X Percentage increment = (0.2X/0.55X) × 100 ⇒ (0.2/0.55) × 100 ⇒ 400/11% ⇒ 36.36% ∴ The percentage increment is 36.36%. India’s #1 Learning Platform Start Complete Exam Preparation
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Discussion :: Ratio and Proportion - General Questions (Q.No.2)
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