Thabos brother is 5 years younger than him.Their combined age is half their sisters age.Their sister is 12 years.How old is Thabo?
T + (T-5) = 12/2
2 T - 5 = 6
2 T = 11
T = 5.5
===============================
check
5.5 + .5 = 6
6 = 12/2
To find out Thabo's age, we need to work through the information provided step by step.
Let's assign variables to the unknowns:
Thabo's age = T
Thabo's brother's age = T - 5 (since Thabo's brother is 5 years younger than Thabo)
Their sister's age = 12
Now, let's use the information that the combined age of Thabo and his brother is half their sister's age (12):
T + (T - 5) = 12/2
First, let's simplify the equation by combining like terms:
2T - 5 = 6
Next, let's add 5 to both sides of the equation to isolate the variable:
2T = 11
Finally, let's divide both sides of the equation by 2 to solve for T:
T = 11/2 = 5.5
Therefore, Thabo is 5.5 years old.