Resources tagged with: Percentages

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There are 15 results

Broad Topics > Fractions, Decimals, Percentages, Ratio and Proportion > Percentages

The Legacy

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?

A Change in Code

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?

Pineapple Juice

Age 14 to 16 Short Challenge Level:

What percentage of this orange drink is juice?

Mathland Election

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.

Percentage Unchanged

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 ?

Roasting Old Chestnuts 4

Age 11 to 16

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

Put Out the Flags

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.

Trusting the Tabloids

Age 11 to 16 Challenge Level:

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

Dating Made Easier

Age 14 to 16 Challenge Level:

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

Doughnut Percents

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.

Fractions and Percentages Card Game

Age 11 to 16 Challenge Level:

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

Retiring to Paradise

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?

Matching Fractions, Decimals and Percentages

Age 7 to 14 Challenge Level:

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

Circle Packing

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? ...

Round and Round

Age 14 to 16 Challenge Level:

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