# Problem Solving Solved!

Hopefully, this page will give some help to tackle problem solving questions specific to the scottish biology curriculum.

It is important that you give feedback whether you found an explanation easy or not, it will help you and many others!

For that, please use the class email.

Take the test:

1/ A pupil has 320 spots which includes 38 caused by midges. What percentage of his spots are caused by the infamous invertebrate?

2/ In a school of 2305 pupils,  56% of pupils are boys. How many is that?

3/ There are 90 flatworm for every 120 worms collected. What is the ratio of flatworm to worm in simple whole numbers?

4/ Jean Claude collected 21 beetles, Anne-Marie collected 13 beetles, Richard collected 42 spiders.

What is the average number of invertebrates collected per pupil?

5/ After 1 day, 2 eggs were laid, after 4 days, 6 eggs where laid after 8 days, 12 eggs were laid. What is the average rate of egg laying by this busy hen?

6/ Practice a bar-chart and a line graph using data on problem solving books.

7/ The number of spiders in a shed went from 35 to 56 in 3 month.

- What is the percentage change in number of spiders over 3 months?

-What is the rate of increase in spiders in the shed?

Solutions, scroll down

1/ 12%

2/ 1291

3/ 4:3

4/ 26

5/ 1.5 eggs/day

7/ - 60% increase

- 7 spiders / day

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