Question

Question 1 and 3 Pie charts

Answer 1

Answer: The calculations are done below.

Step-by-step explanation: Keeping the pie diagrams given in the question in mind, we solve the problems as follows.

(1) There are total 150 children.

(a) Number of children who chose camping is

`S_c=(36^\circ)/(360^\circ)* 150 = 15~\textup{students}.`

(b) Number of children who chose france is

`S_f=(120^\circ)/(360^\circ)* 150 = 50~\textup{students}.`

(c) Number of children who chose pony trek is

`S_p=(108^\circ)/(360^\circ)* 150 = 45~\textup{students}.`

(d) Number of children who chose disney world is

`S_d=(96^\circ)/(360^\circ)* 150 = 40~\textup{students}.`

(2) There are total 1200 drinks.

(a) Number of water drinks sold is

`D_w=(150^\circ)/(360^\circ)* 1200 = 500.`

(b) Number of tea drinks sold is

`D_t=(60^\circ)/(360^\circ)* 1200 = 200.`

(c) Number of hot drinks sold is

`D_h=(120^\circ)/(360^\circ)* 1200 = 400.`

(d) Number of cold drinks sold is

`D_c=(30^\circ)/(360^\circ)* 1200 = 100.`

(3) The total number of people is 72.

(a) Number of people who never ate chocolate is

`P_c=(60^\circ)/(360^\circ)* 72 = 12.`

(b) Number of people who ate chocolate once a week is

`P_o=(45^\circ)/(360^\circ)* 72 = 8.`

(c) Number of people who ate chocolate occasionally is

`P_o=(30^\circ)/(360^\circ)* 72 = 6.`

(d) Number of people who ate chocolate everyday is

`P_o=(180^\circ)/(360^\circ)* 72 = 36.`

Thus, the calculations are done.