1. Solve the problems
1. the sum of the digits of a two digit number is 15. the number obtained by
interchanging its digit exceeds the given number by 9. find the original number.
2 find the least number which must be added to 6203 to obtain a perfect square.
find this perfect square and its square root.
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Answer:
78 is the original number.
2) 38 is the no to be added. Perfect square is 6241 and no 79