First Class Pupil’s Favourite Colours

Third class are doing surveys at the moment. I did a survey in both  first classes of what each pupil’s favourite colour was. Here is the graph that I created. 

image

Here are some questions that I would like you to answer:
1) What was the favourite colour in Ms. Gallagher’s class?
2) What was the least favourite colour in Ms. Gallagher’s class?
3) What was the favourite colour in Ms. Daly’s class?
4) What was the least favourite colour in Ms. Daly’s class?
5) Which colours had the same number of votes?
6) How many pupils voted for red in Ms. Gallagher’s class?
7) How many pupils voted for blue in Ms. Daly’s class?
8) How many pupils voted for orange altogether?
9) How many pupils voted in Ms. Daly’s class?
10) How many pupils voted in Ms. Gallagher’s class?
11) What was the number of pupils in Ms. Daly’s class and Ms. Gallagher’s class altogether?
12) How many pupils voted for yellow and pink in Ms. Gallagher’s class?