A store carries 4 styles of denim jeans. For each style there are 5 different waist sizes and 3 different colours. The store also carries 2 named brands of t-shirts, each of 6 different colours and in 3 different sizes. A customer wants to buy an outfit consisting of one pair of jeans with one branded t-shirt for herself, according to her own size measurements. How many different choices for the outfit does she have?
5*4*3=60
+ 2*6*3=36
36+60=96 ?
Should be 144 ?