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Number of ways to select 4 cars from 10 cars = 10C4 = 10!/(4!* (10-4)!) = 210

Number of ways to select 2 trucks from 7 trucks = 7C2 = 7! / (2! * (7-2)!) = 21

So total number of ways of selecting both cars and trucks = 210 *21 = 4410

by Level 7 User (27.4k points)

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