(a) Calculate the ingredients needed to make this sorbet for 15 people.
26. Mum, Dad and Granny have three cakes:
Chocolate, strawberry and coffee.
Mum likes chocolate or coffee.
Dad likes chocolate, and Granny likes all three.
How can it be arranged, so that they each get a cake that they like?
Answer: Mum, Dad, Granny
32. Three hedgehogs, Rana, Sarah and Tina, are collecting leaves.
Rana collects twice as many as Sarah.
Sarah collects one and a half times as many as Tina.
Between them they collect 198 leaves.
How many leaves did each hedgehog collect?
Answer: Rana=____, Sara=____, Tina=____
(b) List all the starting numbers between 10 and 30 inclusive which give the single digit result 4 in a single step.
For multiples of 11 such as 22 and 55, the result will be zero.
For other starting numbers the numbers in the steps are all square numbers.
(c) List, in order, the possible single digit results.