How many costumers shopped during the sale?

Question

Millers Hardware store was having a sale on pints and gallons of paint. There were 107 people who bought pints of paint 132 people who bought gallons of paint. 92 customers bought only pints. Some people bought both pints and gallons, and 48 costumers did not buy any pints or gallons of paint.

Answer 1

Ben,

 

107 bought pints, but 92 bought only pints...  so you have 92 buying pints and 15 buying both.

132 bought gallons, but 15 of them bought both, so 117 bought only gallons.

And 48 didn't buy anything.

 

Add up:

92 bought only pints

117 bought only gallons

15 bought both

48 didn't buy anything

272 people shopped.

 

I hope this helps.

 

Norm.