1. Get pictures (football 120 degrees, basketball 90 degrees, cycling 90 degrees, swimming 60 degrees; This is a circular chart. You know, the number of people who like football best is 50 more than the number who like basketball best.

(1) How many people like football and basketball best?

(2) What is the total number of participants in the questionnaire survey?

In order to carry out sports activities, the class pays for playing basketball and volleyball. It is known that it takes 16 1 yuan to buy three basketballs and two volleyballs. If you spend 245 yuan to buy three basketballs and five volleyballs, how much is a basketball? How much is a volleyball?

3. Sporting goods stores buy a batch of football and basketball with the same price, of which football accounts for three fifths, and the purchase price is 78% of the pricing; Basketball accounts for two fifths, and the purchase price is 82% of the pricing. What percentage of the total price will the sporting goods store earn after selling these balls?