1. mrs perry shares out 20 biscuits between gemma and zak in the ratio 1:4. how many biscuits do they both get? 

2. mr castle shares out 80 marbles beween emily and asif in the ratio 7:1. how many marbles do they each get? 

3. ms adams shares out 10 pencils between niamh and jack in the ratio 2:3. how many do they each get?