Home
Class 12
MATHS
The lock of a safe has a dial with holes...

The lock of a safe has a dial with holes, sasy ten, in which the numbers 0,1,2,……..9 are inscribed in each hole. The lock can be opened only when a specific code numbersay of six digits is dialled. Suppose the code number is 249916, it means that the can be opened when we first dial 2, then 4 nd so on. Find the maximum number of trials which do not result in opening the lock.

Promotional Banner

Similar Questions

Explore conceptually related problems

Find the number of numbers of 5 digits than can be formed with the digits 0,1,2,3,4 if the digits can be repeated in the same number.

There are n locks and n matching keys.If all the locks and keys are to be perfectly matched,find the maximum number of trails required to open a lock.

Find the number of numbers of six digits that can be formd with the digits 1,2,3,4 if all the digits are to asppear in the same number at least once.

Find the number of 4 digit odd numbers that can be formed using the digit 4,6,7,9,3 so that each digit occurs at most once in each number.

Number of six digit numbers in which sum of the squares of the digits is 9 is

A number lock has 4 dials,each dial has the digits 0,1,2,..... What is the maximum unsuccessful attempts to open the lock?

The ones digit of a 2 -digit number is half of the tens digit.When the number is reversed,it is 27 less than the original number.Find the original number.