Question: In a week, 450 cars drove through a toll booth. Fifty vehicles went through the toll booth on Monday and the same number of vehicles drove through the toll booth on Tuesday. On each of Wednesday and Thursday, twice the number of cars that passed through the toll booth on Monday went through the toll booth. If, for the remaining of the days of the week, an equal number of vehicles passed through the toll booth, calculate the total number of cars that passed the toll both in each of the remaining days.
Answer with step-by-step thinking: There were 50 + 50 = 100 cars that went through the toll booth on Monday and Tuesday. On Wednesday, the number of cars that went through the toll booth is 2 * 50 = 100. The exact number of cars passed through the toll booth on Thursday as Wednesday, giving a total of 100 + 100 = 200 vehicles going through the toll booth in the two days. There were 200 + 100 = 300 cars that passed through the toll booth from Monday to Thursday. If the total number of cars passed through the toll booth in the week was 450, then 450 - 300 = 150 vehicles went through the toll booth on the remaining days. Since there were an equal number of cars in the toll booth on each of the remaining days, there were 150 / 3 = 50 cars on each day.
So the answer is 50.


Question: James buys 6 t-shirts for 50% off. They each cost $20. How much did he pay?
Answer with step-by-step thinking: Each shirt cost 20 * .5 = $10 with the sale. So he paid 10 * 6 = $60.
So the answer is 60.


Question: Mike is building a bridge out of LEGO blocks. To be successful he needs at least 40 bricks of type A, and half that many of type B. In total, he needs to use 150 bricks. How many bricks of other types than mentioned is he going to use?
Answer with step-by-step thinking:
Mike is using 40 blocks / 2 = 20 blocks of type B. He uses in total 40 blocks + 20 blocks = 60 blocks of type A and B. So he is going to use 150 blocks - 60 blocks = 90 blocks of other types.
So the answer is 90.