Question

Jenny is cooking a chicken a chicken needs to be cooked 40 mins per kilogram plus extra 20 mins how much will it take to cook a chicken weighing 3 kilograms

Answer 1

If it is 3kg, it will be: 
40mins x 3 = 120mins
Add the extra 20 mins, it will be 140 mins. This equates to two hours and 20 minutes.