If all were pencils,  $10\times 2= 20$  the total cost would be £$$20$$.  $44- 20=24$  The difference is £$$24$$.  $8-2=6$  $24\div 6=4$  John bought $4$ notebooks. 
John bought $10$ pencils and notebooks in total for £$44$. Each pencil cost £$$2$$. Each notebook costs £$$8$$. How many notebooks did John buy? 
Options:
(a) $$4$$ 
(b) $$5$$ 
(c) $$6$$ 
(d) $$7$$ 
(e) $$8$$ 