A boy is 1 year older than his friend if the sum of of the square of their ages is 421 find their ages
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Answered by
17
Answer:
Boy's age is 15 yrs and friend's age is 14yrs
Step-by-step explanation:
As the magnitude of age cannot be negative,
age of boy = 15yrs
age of friend = 14yrs
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Answered by
5
Answer:
The age of the boy is 15.
The age of his friend is 14.
Step-by-step explanation:
Let the age of the boy be x years
They have given that boy is one year older than his friend, so the age of his friend is given by x - 1
The sum of the squares of ages of a boy and his friend is 421
Therefore
The roots of the above equation are 15 and -14
Since age can not be negative neglect -14
Therefore age of boy x = 15
Age of his friend = x - 1 = 14
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