Question

Bobs age is 4 times greater than susie's age. Dakota is three years younger than susie. The sum of bob, susie, and dakota ages is 93. What is susies age

Answer 1

16 years

Explanation:

Let

Bob's age be b

Susie's age be s

Dakota's age be d

Bob is 4 times than Susie, that means:

b = 4s

Dakota is 3 years YOUNGER than Susie, that means:

d = s - 3

Sum of all 3 is 93, that means:

b + s + d = 93

Putting 1st and 2nd equation in third, we can solve for Susie's age:

b + s + d = 93

4s + s + s - 3 = 93

6s - 3 = 93

6s = 93 + 3

6s = 96

s = 96/6

s = 16

Susie's age is 16 years