Sum of the digit of a two digit number is 12 if the digits are reversed the new number formed is 36 less than the original number find the original number
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Answer:
Step-by-step explanation:
LET THE NO. BE 10A+B.
A+B=12. EQ-1
AFTER REVERSING THE DIGITS,
10B+A=10A+B- 36
9B-9A=-36
9(B-A)=-36
A-B=4. EQ-2
FROM EQ 1 AND 2, WE GET,
A=8 AND B=4.
SO, THE ORIGINAL NO.= 10A+B
=10*8+4=84
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