Answer:
To answer the questions regarding Mokoena's and his brother's ages, we'll use the given information:
Mokoena is p years old.
His brother is twice his age.
2.1 How old is his brother?
Since his brother is twice Mokoena's age, his brother's age would be 2p.
2.2 How old will Mokoena be in 10 years?
To find Mokoena's age in 10 years, we add 10 to his current age: p + 10.
2.3 How old was his brother 3 years ago?
To find his brother's age 3 years ago, we subtract 3 from his brother's current age: 2p - 3.
2.4 What will their combined age be in q years' time?
To find their combined age in q years' time, we add q to the sum of their current ages: p + 2p + q = 3p + q.
Therefore, the answers are:
2.1 His brother's age is 2p.
2.2 Mokoena will be p + 10 years old in 10 years.
2.3 His brother was 2p - 3 years old 3 years ago.
2.4 Their combined age in q years' time will be 3p + q.
Explanation: