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The total height of 10 persons is 2,100 cm. One person of height 300 cm is excluded from the group. Find the average height of the remaining persons?1. 100 cm2. 150 cm3. 200 cm4. 180 cm |
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Answer» Correct Answer - Option 3 : 200 cm Given: Total 10 person’s height = 2,100 cm Excluded person’s height = 300 cm Concept: Average height = Total height/Total persons Solution: Total 10 person’s height = 2,100 cm Excluded person’s height = 300 cm Remaining person’s total height = 2,100 - 300 ⇒ 1,800 cm Remaining persons = 9 Average height of remaining persons = 1,800/9 ⇒ 200 cm |
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