Question

A pizza shop has 6 kinds of cheese, and 13 different toppings. How many ways are there for a customer to select a pizza with 2 cheeses and 4 toppings?

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Answer 1

10725

Explanation:

C
`(2)/(c)`
`.` C
`(4)/(13)` =
`(6x5)/(2)` °
`(13x12x11x10)/(4x3x2x1)`

= 10725