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The sum of the digits of a two-digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the digits. Find the number.

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The correct Answer is:
18
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MBD -HARYANA BOARD-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-SHORT ANSWER TYPE QUESTIONS
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  4. Solve the following equations : 1.5x-(5)/(3)y+2=0 (1)/(3)x+0.5y-(1...

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  7. Solve the following equations : (2x)/(3)+(y)/(2)=3 (x)/(2)-(2y)/(3...

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  8. Solve the following equations : (x)/(2)+(2y)/(3)=-1 (x)/(3)-(y)/(2...

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  9. Solve the following equation : (2x)/(3)-(3y)/(2)=-2 (x)/(2)+(4y)/(...

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  10. Solve the pair of linear equations 3x-y=3 and 7x+2y=20.

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  11. Solve the following pair of linear equations by elimination method : ...

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  12. Solve the pair of linear equations 2x+3y=11 and 2x-4y=-24.

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  18. A fraction becomes (1)/(3) when 1 is subtracted from the numerator and...

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  19. Solve the following pair of equations by reducing them to a pair of l...

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