Question 187980
Omar can have his double scoop either mixed (two flavors) or unmixed (one flavor)


there are 4 flavors, so there are 4 unmixed combinations


each of the four flavors can be combined with three other flavors, for a total of 4*3 or 12 mixed combinations


BUT . . . half of the mixed combinations are duplicates -- vanilla & raspberry is the same as raspberry & vanilla
 . . . so there are really only 6 mixed combinations


4 unmixed and 6 mixed gives a total of 10 possible combinations