Question

A customer forgets a four digit code for an

a.t.m in a bank. however he remembers that this code consists of digits 3,5,6and 9.find the largest possible number of trails to obtain the correct code

Answer 1

A client overlooks a four digit code for an ATM in a bank. Anyway he recalls that this code comprises of digits 3, 5, 6 and 9.find the biggest conceivable number of trails to get the right code.

9635 is the right answer. Like some other information terminal, the ATM needs to associate with, and impart through, a host processor.

Answer 2

Answer: 23

Step-by-step explanation:

There are total 4! = 24 ways to find correct code.

But there is one code which is correct so max trials to get correct code will be 24-1 = 23