Question
Black pens sold by all the shopkeepers are what percent
of the total pens of all three shops? Read the following data carefully and answer the following questions: The table shows the total number of Pens (Red + Black) sold by three shops A, B and C. It also shows the percentage of unsold Pens (Red + Black) and number of Red pens sold by shopkeepers.Solution
Total number of pens sold by A = 50% of 400 = 200 Total number of black pens sold by A = 200 – 500 = 150 Total number of pens sold by B = 75% of 600 = 450 Total number of black pens sold by B = 450 – 190 = 260 Total number of pens sold by C = 60% of 800 = 480 Total number of black pens sold by C = 480 – 80 = 400 Black pens sold by all the shopkeepers = 150 + 260 + 400 = 810 Total pens of all three shops = 400 + 600 + 800 = 1800 Required % = (810/1800) × 100 = 45%
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