Problem of the Week

By Trudy Gau

Please remember to write your name on your entry and place it in the green box in my office.

 

Mild:

Can you put the birds into their nest?

The blue birds nest is the first in line. 

The red birds are next to each other. 

The green bird is between a red bird and blue bird. 

 

Medium:

Isla went to the shops and bought 2 toothbrushes and one tube of toothpaste. 

It cost her $2.60. 

Niamh went to the shops and bought one toothbrush and 2 tubes of toothpaste. 

It cost her $2.80. 

Caleb went to the shops and bought one toothbrush and one tube of toothpaste. 

How much did Caleb spend? 

 

Spicy:

Beth starts with the number 5 and counts by 8s. This results in the sequence: 5, 13, 21, 29, 37 and so on. What is the 25th number in the sequence?