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Five Years Ago The Average Age Of A Family Of Six Members Was 20 Years. A Baby Is Born And Now The Average Age Is 22 Years. How Old Is The Baby At Present ? |
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Answer» Lets assume the age of all the 6 people = 20 YEARS. After 5 years i.e. now their ages will be 25 years. TOTAL age of all the 6 will be = 25*6 = 150 Including baby's age, AVG is 22 years LET x be the age of baby. (150+x)/7 = 22 => x = 4 years. Lets assume the age of all the 6 people = 20 years. After 5 years i.e. now their ages will be 25 years. Total age of all the 6 will be = 25*6 = 150 Including baby's age, avg is 22 years Let x be the age of baby. (150+x)/7 = 22 => x = 4 years. |
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