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A number consist of two digits …

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A number consist of two digits whose sum is 8 if 18 is added to the number it's digits are reversed

    • Posted by Shlok Shetty 7 years, 3 months ago

    CBSE > Class 08 > Mathematics
    • 1 answers

    Tanya Pattnaik 7 years, 3 months ago

    If we take the tens digit to be x then the unit digit is (8-x)... Hence, the number so formed is 10x+(8-x)=9x+8 Reverse of the number is 10(8-x)+x=(80-9x) ATQ, (9x+8)+18=(80-9x) 9x+8+18=80-9x 9x+26=80-9x 18x=80-26 18x=54 x=3 The original number is in the form 9x+8=9×3+8 =35 Hence the original number is 35

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