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Three years from now, the sum of the ages of lito and sissy is 66. If lito is 4 years older than sissy, how old is sissy at the present?

Sagot :

Answer:

sissy is 28

Step-by-step explanation:

let sissy's age be s at present , then

lito's age is s + 4 ( 4 years older than sissy )

In 3 years

sissy's age is s + 3

lito's age is s + 4 + 3 = s + 7

At this time the sum of their ages is 66 , that is

s + 3 + s + 7 = 66

2s + 10 = 66 ( subtract 10 from both sides )

2s = 56 ( divide both sides by 2 )

s = 28

That is sissy is 28 years old.

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