1,40,00,000 pencils are put up straight. all the pencils are of length range 3 to 6 inches. 80% of the pencils have average of five inches. so the find out the total length spanned by the pencils.
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Answer / Rananjay Pratap Singh
First, calculate the number of pencils with an average length of 5 inches: 1,40,00,000 * 0.8 = 1,12,00,000 pencils. Then, find the sum of lengths from 3 to 6 inches (inclusive): 3 + 4 + 5 + 6 = 18 inches. Finally, multiply by the number of pencils with an average length of 5 inches: 18 * 1,12,00,000 = 20,72,00,000 inches.
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