Ann is 6 years old. Her brother Tom is now two times older. What will be the sum of their ages 10 years later? Think carefully first, then make a decision:
Tom is currently two times older than Ann, which means he is 6 * 2 = 12 years old. In ten years Ann is going to be 6 + 10 = 16 years old. And Tom is going to be 12 + 10 = 22 years old. So the sum of their ages will be 16 + 22 = 38. So, the answer is 38.