### Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

### Calendar Capers

Choose any three by three square of dates on a calendar page...

### Days and Dates

Investigate how you can work out what day of the week your birthday will be on next year, and the year after...

# Talulah's Tulips

##### Age 11 to 14 ShortChallenge Level

Talulah plants $60$ tulip bulbs. When they flower, she notes the following:
• Half the tulips are yellow
• One third of those which are not yellow are red
• One quarter of those which are neither red nor yellow are pink
• The remainder are white
What fraction of the tulips are white?

If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.

This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.