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The combination locks on the lockers at Hillside School have numbers from 0 through 39 (inclusive). A locker combination consists of three different numbers, where the order matters. Because of the way the locks are manufactured, all three numbers are even or all three numbers are odd. How many combinations are possible?

 May 29, 2021

Best Answer 

 #1
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20 even numbers    20 odd numbers

 

20 P 3             +         20 P 3 = 13680 combos

 May 29, 2021
 #1
avatar+33735 
+2
Best Answer

20 even numbers    20 odd numbers

 

20 P 3             +         20 P 3 = 13680 combos

ElectricPavlov May 29, 2021

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