Fixed and Variable Cost Exercise    
                   
  Q1) A worker has set out a table of his charges:  
                   
    Number of hours worked 2 4 6 8      
    Cost (£) 20 30 40 50      
                   
  a) What is the fixed cost?            
  b) What is the variable cost?            
  c) Find an expression for the total cost £c for working h hours.      
      c = h +    
                   
  d) Work out the total cost if the worker took  150 hours to complete their work.  
                            Total cost is            
                   
     
  Q2) A worker has set out a table of his charges:  
                   
    Number of hours worked 1 2 3 4      
    Cost (£) 50 78 106 134      
                   
  a) What is the fixed cost?            
  b) What is the variable cost?            
  c) Find an expression for the total cost £c for working h hours.      
      c = h +    
                   
  d) Work out the total cost if the worker took  6 hours to complete their work.  
                            Total cost is            
                   
     
  Q3) A worker has set out a table of his charges:  
                   
    Number of hours worked 6 9 12 20      
    Cost (£) 230 320 410 650      
                   
  a) What is the fixed cost?            
  b) What is the variable cost?            
  c) Find an expression for the total cost £c for working h hours.      
      c = h +    
                   
  d) Work out the total cost if the worker took  24 hours to complete their work.  
                            Total cost is