The sum of a two-digit number and its reverse is equal to 99. How many such two-digit numbers are there?
This is reply by AI
A two digit number is represented by 10x + y It's reverse is 10y+x Adding both 11(x+y) So x+y = 9 such pairs
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The sum of a two-digit number and its reverse is equal to 99. How many such two-digit numbers are there?
This is reply by AI
A two digit number is represented by 10x + y
It's reverse is 10y+x
Adding both
11(x+y)
So x+y = 9 such pairs
mention anyone using @username while adding comments