The answers to multiple-choice questions in a class of Grade 7 are represented by bar charts (as shown in figure 1) and fan charts (as shown in figure 2).

(1) have (? );

(2) The teacher said that "most students got it right". what do you think? ) yes.

Solution: (1) 10÷20%=50 people;

(2) 50× (1-20%-16%-8%) = 28 people.

The picture shows the statistics of crop planting in a village. Look at the picture and answer the following questions:

(1) Fill in the appropriate data in the brackets of the pie chart;

(2) Cotton accounts for 40%, which means what is the central angle of the plate it occupies?

(3) If 240 hectares of rice are planted, how many hectares of cotton are planted?

What is the total area of crops planted in this village?

Solution: (1) 48;

(2) 1440;

(3) Planting 200 hectares of cotton;

(4) The total crop area is 500 hectares. ?