A cookery book shows how long it takes in minutes, to cook a joint of meat. Electric oven
time = (66 x weight in kg) + 35
Microwave oven
time = (26 x weight in kg) + 115
a Compare the two formulae for cooking times. If a joint of meat takes about 2 hours to cook in
an electric oven, 'roughly how long do you think it would take in a microwave oven?
Work out how much quicker is it to cook a 2 kg joint of meat in a microwave oven than in an
electric oven.
Does your answer to part a seem sensible?