Question

 There are 14 pieces of bubble gum in a box. Write the equation for the probability of pulling out a piece of chocolate.

Answer 1

Number of pieces of chocolate in the box=x. Total number of pieces of gum and chocolate=x+14, assuming no other types.

P(chocolate)=x/(x+14). If x=0, P(chocolate)=0/14=0.

If y=number of pieces of assorted types (excluding bubble gum and chocolate), P(chocolate)=x/(x+y+14).