Find the Age of a Teacher
The average age of 15 students is 16 years. If teacher's age is included the average increases by 1. Find the teacher's age. a) 30 years b) 32 years c) 58 years d) 60 years
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age of 15 students is 15*16=240
age including teacher is 16*17=272
now teachers age is 272-240=32
age including teacher is 16*17=272
now teachers age is 272-240=32
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