Question

Huilan is 11 years younger than Thomas. The sum of their ages is 31. What is Thomas's age?

years old

Answer 1

21

Explanation:

Answer 2

21

Explanation:

Huilan: x-11

Thomas: x(Assume)

Their Sum = 31

Huilan+Thomas = 31 ...(1)

Possible Equation: x+x-11= 31 ...(2)

Solved:

2x-11= 31

2x = 31+11

x = 42/2

x = 21

Therefore, Thomas' Age is 21.