The number of combinations of ice cream of 20 different flavours, 4 different types of cones and 6 different toppings are 480.
A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.
The number of flavours=20
The number of cones=4
The number of toppings=6
Number of combinations=20C1 *4C1 *6C1
where C is used for combinations which is enlarged in n!/r!(n-r)!
Number of combinations=20!/1!19! * 4!/1!3! * 6!/1!5!
=20*4*6
=480
Hence the number of combinations will be 480 for 20 flavours of ice cream , 4 types of cones, 6 types of toppings.
Learn more about combinations at https://brainly.com/question/11732255
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