Question

tinas sister is younger to her by 3 years and her brother is elder to her by 4 years. the sum of the ages of tina, her sister and her brother is 73 years. what is tinas age?

Answer 1

Let Tina's age be x

Then her sister age will be x-3

and her brother age will be x+4

x+x-3+x+4=73

3x+1=73

3x=73-1=72

x=24

thus Tina's age is 24