Layla and Nahima were playing a game where Layla won with 70 points. If The total number of points scored was 112, how many more points did Layla score than Nahima? Give the rationale and then the answer.
Let's think step by step. If the total number of points was 112, and Layla won with 70 points, Nahima scored 112 - 70 = 42 points. Layla scored 70 - 42 = 28 more points than Nahima.. The answer is: 28.

A patient is receiving treatment through a saline drip which makes 20 drops per minute. If the treatment lasts 2 hours, and every 100 drops equal 5 ml of liquid, how many milliliters of treatment will the patient receive after the 2 hours have passed? Give the rationale and then the answer.
Let's think step by step. The total of minutes the treatment will take is 2 hours x 60 minutes / hour = 120 minutes. After 120 minutes has passed the total amount of drops that the patient will receive is 20 drops / minute x 120 minutes = 2400 drops. Knowing the number of drops, we know that the patient has taken 2400 drops x 5 ml / 100 drops = 120 ml.. The answer is: 120.

Randy has $30. He spent $10 buying his lunch. He spent a quarter of the money he had left on an ice cream cone. What is the amount of money, in dollars, Randy has left? Give the rationale and then the answer.
Let's think step by step. Randy has 30 - 10 = 20 dollars left after buying lunch. Randy spent 20 / 4 = 5 dollars on the ice cream cone. Randy has 20 - 5 = 15 dollars left.. The answer is: 15.