If a number of 4 digits is added to the number formed by
reversing these digits, then the number so formed is always
divisible by
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Step-by-step explanation:
the number so formed is always divisible by the number which was the sum of 1st digit number and last digit number and 1
example:1234 is a given 4 digit number after reversing it was 4321 the sum is 5555 divisible by 5
1+4=5
hence it is divisible by 5
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