The average age of four brother is 12 yr. If the age of their mother is alsoincluded. The average is increased by 5 yr. The age of mother (in years) is

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RRB GG Exam (Bhopal) 2009 click here to view all questions

The average age of four brother is 12 yr. If the age of their mother is also included. The average is increased by 5 yr. The age of mother (in years) is

A37 yr

B43 yr

C48 yr

D53 yr

rahul ? Jan 11 '2020 at 17:2

Correct answer is: 37 yr

Explanation:

Sum of age of four brothers  \(= 12×4 = 48\)

 

Sum of age of four brothers and their mother,  \(17×5 = 85\)

Mother's Age \(= 85 - 48 = 37\)

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Correct answer is: 37 yr Explanation: Sum of age of four brothers  \(= 12×4 = 48\)   Sum of age of four brothers and their mother,  \(17×5 = 85\) Mother's Age \(= 85 - 48 = 37\) rahul ? answered Jan 11 '2020 at 17:2 All Comments

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