Given:
Abbas takes 12 minutes to eat a pizza and Mashi takes 6 minutes to eat same size pizza.
Abbas will eat 2 pizza in 24 minutes and Mashi eats 4 pizza in 24 minutes .
[tex]\text{Total number of pizza they polish off in 24 minutes }=2+4[/tex][tex]\text{Total number of pizza they polish off in 24 minutes }=6[/tex]