Question

The average age of 3 sisters is 15. If the ages of 2 sisters are 12 years and

15 years, the age of the third sister is​

Answer 1

Answer:

age of the 3rd sister is 18 years

Explanation:

sum of age of 3 sisters is 15×3=45 years

the of 2sisters is 12 n 15

sum of age of 2sisters is 12+15 = 27 years

age of 3rd sister = 45 - 27 = 18 yrs age of

therefore age of 3rd sister is 18 years

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