Bob is twice as old as chuck, and susie is 10 years younger than bob. If the sum of their age is 100 years, how old is susie?
b = 2c
s = b-10
b+c+s = 100
Now just crank it out.
To calculate Susie's age, we need to go step by step. Let's assign variables to each person's age:
Let's call Chuck's age "C."
Bob's age is twice as old as Chuck, so Bob's age is "2C."
Susie's age is 10 years younger than Bob's, so Susie's age is "2C - 10."
Given that the sum of their ages is 100 years, we can form the equation:
C + 2C + (2C - 10) = 100
Combining like terms:
5C - 10 = 100
Now, let's solve for C:
5C = 100 + 10
5C = 110
C = 110 / 5
C = 22
Chuck is 22 years old, so Bob is 2C = 2 * 22 = 44 years old.
Finally, Susie's age is 2C - 10 = 2 * 22 - 10 = 44 - 10 = 34 years old.
Therefore, Susie is 34 years old.