Hi, ps help. Many this and God Bless:)

In a restaurant, 4 chefs can prepare 24 dishes in 2 hours.

(a) Find the number of chefs required to prepare 46 dishes in 3 hours.

(b) On a particular day, the chefs were instructed by the restaurant owner to prepare a special buffet of 46 dishes from 11am to 2pm.  Due to the late arrival of the ingredients, the preparation time was halved.  Find the number of additional chefs required to prepare the dishes for the buffet.