The average age of three boys is 15 years and their ages are in tje ra

1.	The average age of three boys is 15 years and their ages are in tje ratio 3:5:7. Find the age of the youngest boy
Answer» ANSWER: let the age of first boy =3x let the age of second boy =5x let the age of THIRD boy = 7x ACCORDING TO THE QUESTION = 3x+ 5x+ 7x = 15 =15x=15 therefore, x = 15/15 x= 1 hence , the age of first boy = 3x =3×1 =3 years the age of second boy = 5x = 5×1 = 5 yrs the age of third boy = 7x =7×1 = 7years so, the age of youngest boy = 3 years

The average age of three boys is 15 years and their ages are in tje ratio 3:5:7. Find the age of the youngest boy

Answer»

ANSWER:

let the age of first boy =3x

let the age of second boy =5x

let the age of THIRD boy = 7x

ACCORDING TO THE QUESTION

= 3x+ 5x+ 7x = 15

=15x=15

therefore, x = 15/15

x= 1

hence , the age of first boy = 3x =3×1 =3 years

the age of second boy = 5x = 5×1 = 5 yrs

the age of third boy = 7x =7×1 = 7years

so, the age of youngest boy = 3 years

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The average age of three boys is 15 years and their ages are in tje ratio 3:5:7. Find the age of the youngest boy

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