Question: Ann is 6 years old. Her brother Tom is now two times older. What will be the sum of their ages 10 years later?
Answer with step-by-step thinking: 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.

Question: Jeff is collecting matchbox cars. He has twice as many cars as trucks. He has 60 total vehicles. How many trucks does he have?
Answer with step-by-step thinking: The number of trucks + 2(number of trucks) = 60. Therefore 3(number of trucks) = 60. Number of trucks = 20 because 60 / 3 = 20.
So the answer is 20.

Question: Ashley had already blown up 12 balloons for the party when Andy took over and started blowing them up at a rate of 2 every five minutes. When Andy stopped, there were 50 balloons. For how many minutes did Andy blow up balloons?
Answer with step-by-step thinking:
Andy blew up 50 balloons the 12 balloons Ashley blew up = 38 balloons. We know how long it took Andy to blow up 2 balloons, so 38 balloons / 2 = 19 time increments. We know the time increment is 5 minutes, so 19 x 5 minutes = 95 minutes.
So the answer is 95.