Find the fractions for each department individually.

What does one-third mean?

Reduce all the fractions to their simplest forms first.

Find the number of cheese balls eaten by each person individually and then add up Rohits and Sonus share.

Find one quarter of 320 first, then find the three-quarters of the answer.

Recall what is a quarter.

Find one quarter of 320 first, then find the three-quarters of the answer.

Three quarters means divide by four and then multiply by 3

Find three quarters of 50,000 and then add the result to 50,000.