Question

A number consists of 2-digits whose sum is 15. If a is subtracted from it, the digits are
reversed. Find the number.​

Answer 1

Answer:

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Step-by-step explanation:

Assume the two digit number is formed by 7 and 8, also by 6 and 9.. therefore the numbers will be, 69, 96 and 78, 87 results in 15 after adding..

6+9=15

7+8=15

8+7=15

9+6=15

here we have to subtract a digit number from that number to get the reversed

from 69 and 78 if we subtract a digit number we will not get reverse and feom 96 if subtract a digit number we will not get same.. so

from 87 if we subtract 9 a single digit number..

87-9= 78..

digits got reversed