Question

before i can open my gym locker, i must remember the combination. two of the numbers of this three-term sequence are 17 and 24, but i have forgotten the third, and do not know which is which. there are 40 possibilities for the third number. at ten seconds per try, at most how long will it take me to test every possibility? the answer is not 40 minutes!

Answer 1

Therefore, 6 minutes and 40 seconds are needed to test possibilities.

Describe combination.

Combinations are sometimes known as selections. Combinations are the results of selecting elements from a set assortment. Nothing specific is being organized here. We are choosing them. To denote the number of unique r-selections or combinations among a set of n items, we write n C r. Combinations are distinct from arrangements or permutations.

Here,

The first two numbers in this three-term series are 17 and 24, and the third one remains a mystery.

Given that there are 40 options for the third number and that each try takes 10 seconds, we have 40 x 10 seconds, or 400 seconds, to try every possible combination.

Thus,

=> 400 seconds  is equals to 6 minutes and 40 seconds

Therefore, 6 minutes and 40 seconds are needed to test every scenario.

To know more about combination , visit

brainly.com/question/28042664

#SPJ4