Question

The age of Sara's father is thrice hers. The age of Sara's brother is 4 years more than hers. Find an expression in terms of y for the sum of their ages where y represents Sara's age. please answer me please ​

Answer 1

Step-by-step explanation:

let the age of sara be y years

then, according to the Question (age of Sara's father is thrice hers)

father's age = 3y years

and (age of Sara's brother is 4 years more than hers)

brother's age = y + 4 years

so,

age of Sara = y years

age of Sara's father = 3y years

age of Sara's brother = y + 4 years

then,

sum of their ages = Sara's age + father's age + brother's

y+3y+y+4

=5y+4

hence, sum of their ages is 5y + 4