Question

Preeta is 4 years elder to her brother. the sum of their ages is 75. find their ages.

Answer 1

Refer to the above attachment

Answer 2

Define x:

Let the brother be x years old

Preeta = x + 4

Form equation:

Sum of their age is 75

⇒ x + x + 4 = 75

Solve x:

x + x + 4 = 75

2x + 4 = 75

2x = 71

x = 35.5

Find their age:

Brother = x = 25.5 years old

Preeta = x + 4 = 25.5 + 4 = 29.5 years old

Answer: Preeta is 29.5 years old and her brother is 25.5 years old