IIHarmonyII
10.04.2020 •
Mathematics
GUESS!
147 - One digit is right but in the
wrong place
189 - One digit is right and in its
Place
964- Two digits are correct but both
are in the wrong place
523 - All digits are wrong
286 - One digit is right but in the
wrong place
What
are
the three numbers !
Solved
Show answers
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Ответ:
The three numbers are 6, 7 and 9
Explanation:
First of all exclude the numbers which aren't correct.
From the 4th data,We can conclude the digit 5, 2 and 3 are wrong.
Now,
147 - One digit is right but wrong placed189 - One digit is right and placed correctly964 - Two digits are correct but at wrong place523 - All digits are wrong286 - One digit is right but in the wrong placeWe've to find the three digits :
From case 4: 5, 2 and 3 are wrong
So, remove 5, 2 and 3 from all the cases
The numbers are:
147 - One digit is right but wrong placed189 - One digit is right and placed correctly964 - Two digits are correct but at wrong place_86 - one digit is right but in the wrong placeFrom 1st and 3rd we can say that: 4 is present in both the case but wrongly placed.
Now the digits become:
1_7 - One digit is right but wrong placed189 - One digit is right and placed correctly96_ - Two digits are correct but at wrong place_86 - one digit is right but in the wrong placeFrom 3rd and 4th case we can say that: 9 and 6 are correct but wrongly placed, 8 is not the number and 6 is placed at first
So, the two numbers of a 3 digit number are 6 and 9
From 2nd, 3rd and 4th case, the position of 6 and 9 are:
6 _ 9
From 1st case, 7 is the digit but wrongly placed. So, the 3 digit number becomes:
6 7 9
Ответ:
1 and 5
Step-by-step explanation:
i just did it