Here, first, we need to determine whether we can choose a digit twice or not. We can have four-digit numbers such as 1000, 1002, 3032, and 4044.
Then the password must be 1000 P(n,k)=10 to the power of 4=1000
An unknown virus has spread to the earth. People hospitalized with severe symptoms from the virus are given medicine to bring down the fever. However, it didn’t cure them.
One day , a scientist told a a group of space explorers on a 24 hour mission to a research center on the moon as they are tasked to find information about the cure. It is told that it is where the situation started when the virus happened. Some people are infected and dropped on earth.
They saw a password. But the instructions says that to enter the password they must find out that .From the set of first 10 natural numbers, you are asked to make a four-digit number. How many different permutations are possible?The clue is it has 4 digits.
In all these numbers, one digit is repeated twice or thrice.
The total number of elements in a set is 10 and the number of digits we want to select from this set is 4.
Everyone gets inside the station just before their oxygen runs out.
(THEN THE ASTRONAUTS FLEW TO THE MOON)Thus, their goal is to find the cure.
Sukurta daugiau nei 30 milijonų siužetinių lentelių