문제 Q1.svg 해설 students and the teacher are going to buy the T-shirts, so the total number of people buying the T-shirts is .
Let as the quantity of small-sized T-shirts, as the quantity of medium-sized T-shirts, as the quantity of large-sized T-shirts, as the quantity of extra-large-sized T-shirts, and as the quantity of extra-extra-large-sized T-shirts.
Since are in arithmetic progression and , the arithmetic mean would be .
Since , the common difference would be .
Also, according to the…
charlesahn0903
commented
1 year ago
Pyeon–Ahn SAT (1) 가격 계산
문제 Q1.svg 해설 students and the teacher are going to buy the T-shirts, so the total number of people buying the T-shirts is . Let as the quantity of small-sized T-shirts, as the quantity of medium-sized T-shirts, as the quantity of large-sized T-shirts, as the quantity of extra-large-sized T-shirts, and as the quantity of extra-extra-large-sized T-shirts. Since are in arithmetic progression and , the arithmetic mean would be . Since , the common difference would be . Also, according to the…
https://leesj.me/pasat-q1/