Do the maths... answer 30 questions and win one of 50 Flips

The Flip, which goes on sale in Britain next week, is a tiny video camera that needs no instruction manual. It is the ultimate point-and-shoot, YouTube-friendly, plug-in-and-upload mini-masterpiece.

For your chance to win one, just have a crack at our maths quiz and send your answers to comps@independent.co.uk

Terms and conditions: Entries must be received by 16 June. Winners will be picked at random and notified by phone or email on 17 June. The Editor's decision is final. One entry per household. See www.independent.co.uk/legal for standard Independent terms and conditions. No purchase necessary: For more information on how to enter send a stamped addressed envelope to Flip competition entry, Marketing Department, 191 Marsh Wall, London E14 9RS.

1. How many days are there in 10 weeks and 2 days?

2. Divide 8400 by 100.

3. Add -4 and 7.

4. Look at these types of triangles: isosceles, scalene, equilateral, right-angled. Which one must have three equal angles?

5. Write the fraction five-twentieths as simply as possible.

6. Round 0.348 to two decimal places.

7. Divide -100 by -10.

8. The rule for the nth term of a sequence is n(n+3). What is the fifth term for this sequence?

9. 4 to the power of 9 divided by 4³ = 4 to the power of x. What is x?

10. Look at the triangle shown on the grid in figure 1. What are the coordinates of the point marked A?

11. A book has 120 pages. I have read a quarter of those pages. How many pages have I read?

12. How much must you add to 2092 to make 3000?

13. The total of four numbers is 80. What is their mean?

14. Look at the diagram in figure 2. What is the size of angle m.

15. A book costs £5.99. What is the total cost of three of these books?

16. What is 20 per cent of 700?

17. Look at the isosceles triangle in figure 3. What is the size of angle b?

18. y = x²+ 2. If x = 3, what is the value of y?

19. The ratio of men to women in a chess club is three to two. There are fifty people in the chess club. How many are women?

20. Multiply 2x by 5y. Write your answer as simply as possible.

21. Find an approximate answer to 3009 divided by 599.

22. How many integer solutions are there in the inequality 5 < x < 9 ?

23. A racing pigeon can fly at 90km/h. At this speed, how far would it fly in one minute?

24. Look at the graph in figure 4. By how much did the temperature fall between 2pm and 5pm?

25. Look at the rectangle in figure 5. with length 6cm. Its perimeter is 20cm. What is the width of the rectangle?

26. b = 2a - 4. If b = 8, what is the value of a?

27. 120 people chose between three types of orange juice. The pie chart in figure 6 shows the results. Sixty people chose type A. Approximately, how many people chose type B?

28. Look at the circle in figure 7 with a radius of 10. Which of a, b, c, d or e is the area of the circle?

29. I am going to take a ball at random from a bag. The probability it will be blue is five-sixths. 20 of the balls are blue. How many of the balls are not blue?

30. A photograph is enlarged using a scale factor of 2.5. After the enlargement, it has a length of 25 cm (see figure 8). What was its length before the enlargement?

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