Math, asked by utkarsh42051, 1 day ago

दो अंकों से बनी संख्या के अंको का योग 9 है । यदि संख्या के अंको को उल्टा कर दिया जाय तो प्राप्त संख्या मूल संख्या से 45 अधिक हो ।​

Answers

Answered by ratnamalasarode85
1

Step-by-step explanation:

if first number is X and second number is Y

Y + X = 9 ------- equation 1

by second sentence

10Y + X = 10X + Y + 45

9Y - 9X = 45

Y - X = 5 ------- equation 2

equation 1 + equation 2

Y + X = 9

Y - X = 5

=========

2Y = 14

Y = 7

=====================

put the value of Y in equation 2

Y - X = 5

7 - X = 5

X = 7 - 5

X = 2

so the two digit number is 27

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