average age of 15 students is 18years. the average age of 9 students is 12 years. what is the average of remaining 6 students
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Answer:
27 Year
Step-by-step explanation:
Total age of 15 students = 15 * 18 = 270 years
Total age of 9 students = 9 *12 = 108 Years
Total Age of remaining 6 Students = 270 - 108 = 162 Years
Average age of 6 students = 162/6 = 27 Year
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