Work through the farmers

Exercise and reference answers

Questions

1. Hint

   total minus those outside

   Answer

   40

   Question

   50 farmers, 10 grow neither crop. How many are in the union?

2. Hint

   union = C + M - both

   Answer

   31

   Question

   Union 40, cashew 25, both 16. How many grow maize in total?

3. Hint

   take the overlap away

   Answer

   15

   Question

   31 grow maize, 16 grow both. How many grow maize only?

Instructions

Follow the set formulae and key in each answer.