Here is a simple but tricky brain teaser. You are given some hints and you have to guess the number I am thinking using these hints.
Let’s see if you can guess the correct number.
Find 4 digit number
I’m thinking of a 4-digit number with all distinct digits.
Each of the following has one and only one correct digit
in the correct position:
| 6358 | 6728 |
| 9306 | 1191 |
| 4882 | 5627 |
What is my number?
You are given 6 numbers which include the one correct digit with the correct position. Now, find the number.
Hint: Look for duplicate digits in combinations since you need to find 4 digits but given 6 numbers.
Also Try: If you liked this brain teaser then, you may like some of these brain teasers too.
Tamara Score Math BrainTeaser
Crack the code puzzle brainteaser
How many girls have had all these four items brain teaser?
Can you decipher the code to open the door?
Can you crack the code and unlock the lock?
Find 4 digit number brain teaser Answer:
4321
Explanation:
Since we are given 6 numbers however only 4 digits need to be found which means, 2 numbers will have duplicate digits with correct position. Here are highlighted digits which match this.
| 6358 | 6728 |
| 9306 | 1191 |
| 4882 | 5627 |
So now we have 2 digits with their positions so lets assume number to be: x32y
We are left with 2 numbers in which we need to find 2 digits, one from each.
1191 –> from this , we know that number cannot be 9, since 9306 had number 9 and as per statement only one digit should be correct and we already know that it was 3.
Which leaves us with digit to be as 1 however as of now we don’t know if it would be first or at 4th position.
4882 –> 6358 and 6728 tells that digit cannot be 8.
It cannot be 2 as it is already there in other combo which leaves digit 4 at first position.
It also tells that digit 1 from above number(1191) should be at fourth position.
So now we have number as 4321
Please like our Facebook page for more such puzzles, riddles and brainteasers.
