The average age of a chid in class 35 is 11the average ageincluding the teacher is 12 how old is teacher
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Answer:
teacher is 47 years old
Step-by-step explanation:
35 × 11 = 385
36 × 12 = 432
385 + x = 432
x = 432 - 385
x = 47 years old
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