### There are 16 results

Broad Topics >

Fractions, Decimals, Percentages, Ratio and Proportion > Calculating with percentages

##### Age 14 to 16 Challenge Level:

Your school has been left a million pounds in the will of an ex-
pupil. What model of investment and spending would you use in order
to ensure the best return on the money?

##### Age 14 to 16 Challenge Level:

If a sum invested gains 10% each year how long before it has
doubled its value?

##### Age 14 to 16 Challenge Level:

There are two sets of numbers. The second is the result of the
first after an increase by a constant percentage. How can you find
that percentage if one set of numbers is in code?

##### Age 7 to 11 Challenge Level:

Would you rather: Have 10% of £5 or 75% of 80p? Be given 60% of 2 pizzas or 26% of 5 pizzas?

##### Age 14 to 16 Challenge Level:

All CD Heaven stores were given the same number of a popular CD to
sell for £24. In their two week sale each store reduces the
price of the CD by 25% ... How many CDs did the store sell at. . . .

##### Age 11 to 14 Challenge Level:

A political commentator summed up an election result. Given that
there were just four candidates and that the figures quoted were
exact find the number of votes polled for each candidate.

##### Age 14 to 16 Short Challenge Level:

What percentage of this orange drink is juice?

##### Age 11 to 16 Challenge Level:

Can you match the cards and figure out whether the tabloid headlines can be trusted?

##### Age 11 to 14 Challenge Level:

When Charlie retires, he's looking forward to the quiet life, whereas Alison wants a busy and exciting retirement. Can you advise them on where they should go?

##### Age 7 to 11 Challenge Level:

Go through the maze, collecting and losing your money as you go.
Which route gives you the highest return? And the lowest?

##### Age 7 to 11 Challenge Level:

Charlie thinks that a six comes up less often than the other
numbers on the dice. Have a look at the results of the test his
class did to see if he was right.

##### Age 11 to 16

For teachers. Yet more school maths from long ago-interest and
percentages.

##### Age 11 to 14 Challenge Level:

Tim and Beth both have a string of flags. Use the percentages to
find out who has the most flags.

##### Age 7 to 11 Challenge Level:

Find the exact difference between the largest ball and the smallest
ball on the Hepta Tree and then use this to work out the MAGIC
NUMBER!

##### Age 14 to 16 Short Challenge Level:

If the base of a rectangle is increased by 10% and the area is unchanged, by what percentage is the width decreased by ?

##### Age 7 to 11 Challenge Level:

In my local town there are three supermarkets which each has a
special deal on some products. If you bought all your shopping in
one shop, where would be the cheapest?