Question

Bob's age is 4 times greater than Susanne's age. Dakota is three years younger than Susanne. The sum of Bob's, Susanne's, and Dakota's ages is 93. What is Susanne's age?

Answer 1

16 years old

Explanation:

Hope this helps!

Answer 2

Susanne is 16 years old.
b = Bob's ages = Susanne's age
d = Dakota's age
Bob's age is 4 times greater than Susanne's age:
b = 4s
Dakota is three years younger than Susanne:
d = s - 3
The sum of Bob's, Susanne's, and Dakota's ages is 93:
b + s + d = 93

solve these equations:
b = 4s
d = s - 3
b + s + d = 93

and get:
b = 64 years
s = 16 years
(remember that s = Susanne)
d = 13 years