Question

The average age of four boys is 13 yearsafter coming one more boys their average age becomes 12 years find the age of new boys who came after.

Answer 1

Answer:

i hope itis help full ;

Step-by-step explanation:

Here's The Answer

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We know Average ( Avg )

=> Avg = Net total / number

A.T.Q.

=>( Sum of ages of 5 boys ) / 5 =13

=> Sum of ages of 5 boys = 13 × 5

=> Sum of ages of 5 boys = 65

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# Now a boy is added of age ( x ) and average becomes 12

=> Total sum of ages / no = 12

=> ( Sum of ages of 5 boys + sixth boy )/ 6 = 12

=> ( 65 + x ) / 6 = 12

=> 65 + x = 72

=> x = 72 - 65

=> x = 7 years

# Age of sixth boy is 7 years

Answer 2

Answer:

8 years

Step-by-step explanation:

is correct answer