[Question]Katya sold 8 glasses of lemonade and Ricky sold 9 glasses of lemonade. If Tina sold twice as many as Katya and Ricky's combined sales, how many more glasses of lemonade than Katya did Tina sell?
[Answer]Katya and Ricky sold 8 + 9 = 17 glasses of lemonade. Tina sold 17 x 2 = 34 glasses of lemonade. Tina sold 34 - 8 = 26 more glasses of lemonade than Katya. The answer is 26.

[Question]Cloud 9 Diving Company has taken individual bookings worth $12,000 and group bookings worth $16,000. Some people have cancelled at the last minute. $1600 has had to be returned to them. How much money has the sky diving company taken altogether?
[Answer]Cloud 9 earned $12,000 + $16,000 = $28,000 from bookings. After returning money due to cancellations, they had a final total of $28,000 - $1600 = $26,400. The answer is 26400.

[Question]Parker and Richie split a sum of money in the ratio 2:3. If Parker got $50 (which is the smaller share), how much did they share?
[Answer]If Parker got $50 with a ratio of 2, then the unit share is $50 / 2 = $25. Using the sharing ratio, Richie gets 3 unit shares which total to 3 * $25 = $75. The money they shared was $50 + $75 = $125. The answer is 125.

[Question]Mr. McNeely takes a register of the total number of students present in class every day. On a particular week, the number of students in the class on the second day was 40 more than the first day. The number of students who didn't turn up for the class on the second day was twice the number of students who didn't turn up on the third day. On the third day, 1/7 of the total number of students of the class called in sick. If the total number of students in the class is 280, calculate the number of absent students in the three days.
[Answer]
On the third day, 1 / 7 * 280 = 40 students called in sick. If the number of students absent on the second day was twice the number on the third day, then 2 * 40 = 80 students didn't show up for the class on the second day. The total number of students present in the class on the second day was 280 - 80 = 200. If 40 fewer students showed up for the class on the first day than on the second day, then 200 - 40 = 160 students showed up for the class on the first day. The number of students absent on the first day is 280 - 160 = 120. In the three days, the total number of absentees is 120 + 80 + 40 = 240. The answer is 240.