SOLUTION: Brenda and Trent are friends. Brenda is 24. The LCM of their age is 120 and the GCF of their age is 8. How old is Trent.

Algebra.Com
Question 9537: Brenda and Trent are friends. Brenda is 24. The LCM of their age is 120 and the GCF of their age is 8. How old is Trent.
Answer by mathmaven53(29)   (Show Source): You can put this solution on YOUR website!
Factor Brenda's age into 24 = 3*8
Factor 120 into 120 = 8*3*5
Trent can't be 120 since GCF of their ages would be 3*8
Trent can't be 8*3 since GCF of their ages would be 8*3
Let Trent be 8*5 = 40
GCF(24,40) = 8
24 = 3*8
40 = 5*8
5*24 = 3*5*8=120
3*40 = 3*5*8 =120
LCM(24,40)=120
So Trent is 40

RELATED QUESTIONS

If ALICE is twice as old as BRENDA and BRENDA is half as old as CATHERINE, How old is... (answered by Maths68,richwmiller)
Brenda is 4 years older than walter, and carol is twice as old as brenda. three years... (answered by stanbon)
Mary's age is twice Fred's age and one-third of Sally's age. If the sum of their ages is... (answered by Theo)
Aby and his brother Ben are teenagers. Ben is 3 years younger than Aby and the GCF of... (answered by Edwin McCravy)
Abby and his brother Ben are teenagers. Ben is 3 years younger than Abby and the GCF of... (answered by CubeyThePenguin)
Diego is 1 year younger than Suzie. Trent is 19. Harold is 5 years older than Trent and 4 (answered by ankor@dixie-net.com)
max is four years younger than his sister Brenda. the total of their ages is 16. Write... (answered by josgarithmetic)
Mary's age is twice Rick's age and one-third of Steve's age. If the sum of their age is... (answered by edjones)
Chad and his grandfather both had birthdays last week. The sum of their ages is 120. His... (answered by josgarithmetic)