top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

How many such pairs are possible if in both numbers units place is 1 more than tens place?

0 votes
123 views

2 two digit numbers chosen in such a way that all 4 digits used are distinct, are such that their sum is 90.
How many such pairs are possible if in both numbers units place is 1 more than tens place?

posted Jun 25, 2015 by Anamika

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Solution

0 votes

6 pairs
12 78
23 67
34 56
56 34
67 23
78 12

solution Jun 25, 2015 by Sivaselvaraj



Similar Puzzles
0 votes

A 4 digit number having all distinct digits is such that the product of all digits is 8 less than the sum of all digits.
How many such 4 digits number are possible ?

0 votes

Is it possible to write down 1,2,3..100 in some order (one after an other), such that the sum of any two adjacent numbers is a prime number?

–2 votes

? + ? + ? + ? + ? = 30

You have to fill numbers in place of question marks. The numbers that you can use are 1, 3, 5, 7, 9, 11, 13 and 15. You can repeat the numbers if you like.

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#470/147, 3rd Floor, 5th Main,
HSR Layout Sector 7,
Bangalore - 560102,
Karnataka INDIA.
QUERY HOME
...