请教两道题(来自prep)

1.       In May, Xiang sold 15 used cars . for these 15 cars , the range of the selling prices was $15000 and the lowest selling price was $4500. In June, Xiang sold 10 used cars . For these 10 cars, the range of the selling prices was $16500 and the lowest selling price was $6100. what was the range of the selling prices of the 25 used cars sold by Xiang in Many and June?

2.       Rasheed bought two kinds of candy bars, chocolate and toffee, that came in packages of 2 bars each. He handed out 2/3 of the chocolate bars and 3/5 of the toffee bars. How many packages of chocolate bars did Rasheed buy?

(1)    Rasheed bought 1 fewer package of chocolate bars than toffee bars

(2)    Rsheed handed out the same number of each kind of candy bar.

这题我根本没看懂.