Question

how many pair of reversible number from 1 to 100​

Answer 1

Answer: There are total 10 pair of reversible number from 1 to 100​.

Step-by-step explanation:

12+21=33, 14+41=55, 16+61=77, 18+81=99, 23+32=55, 25+52=77, 27+72=99, 34+43=77, 36+63=99, 45+54=99.

Basically, the reversible number is the number which on reversing gives the sum which is an odd number.

Above all are the numbers which on reversing gives an odd number as the sum. If we take a number, say 12. On reversing, it gives 21. Now add 12 and 21,it gives the result in odd number as 33.