# Resources tagged with: Percentages

### There are 15 results

Broad Topics >

Fractions, Decimals, Percentages, Ratio and Proportion > Percentages

##### 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 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 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

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 7 to 14

Challenge Level

A task involving the equivalence between fractions, percentages and decimals which depends on members of the group noticing the needs of others and responding.

##### 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

Challenge Level

Prove that the shaded area of the semicircle is equal to the area of the inner circle.

##### Age 14 to 16 Short

Challenge Level

What percentage of this orange drink is juice?

##### Age 7 to 14

Challenge Level

Can you match pairs of fractions, decimals and percentages, and beat your previous scores?

##### Age 14 to 16

Challenge Level

Equal circles can be arranged so that each circle touches four or
six others. What percentage of the plane is covered by circles in
each packing pattern? ...

##### 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 11 to 16

Challenge Level

Can you find the pairs that represent the same amount of money?

##### 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 11 to 16

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