[Question]Kendy made 2 online bank transactions. She transferred $60 to her mom and half that amount to her sister. As a result, her account now has $100 left in it. How much money was in the account before the transfer?
[Answer]Kendy transferred $60 x 1 / 2 = $30 to her sister. So, She transferred a total of $60 + $30 = $90. Therefore, Kendy has $100 + $90 = $190 in the account before the transfer. The answer is 190.

[Question]Ms. Mitsuko told the class that if the average score on their quiz is higher than 75% then they will get a pizza party. There are 25 students in the class. One student is absent and has to take the test the next day. The average score of the students who took the test was 77%. What is the lowest grade the absent student can get for the class to still get a pizza party?
[Answer]The total percentage the class needs to get is 18.75 because 25 x .75 = 18.75. The total percentage the class has absent the one student is 18.48. The lowest the absent student can get and still have a pizza party is 27% because (18.75 - 18.48)x 100 = 27. The answer is 27.

[Question]Jason is mixing a batch of black paint. He needs to add 2 grams of charcoal for every 30 ml of water. If he adds 900 ml of water, how much charcoal does he add?
[Answer]First find how many ml of water Jason needs for 1 gram of charcoal: 30 ml / 2 grams = 15 ml / g. Then divide the amount of water Jason uses by the amount of water per gram of charcoal to find how much charcoal he uses: 900 ml / 15 ml / g = 60 g. The answer is 60.

[Question]James decides to buy a living room set. The coach cost $2500 and the sectional cost $3500 and everything else has a combined cost of $2000. He gets a 10% discount on everything. How much did he pay?
[Answer]
The combined cost of everything was 2500 + 3500 + 2000 = $8000. So he gets an 8000 * .1 = $800 discount. That means he pays 8000 - 800 = $7200. The answer is 7200.