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n/2_3n/4+5n/6=21

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n/2_3n/4+5n/6=21

    • Posted by Ishika Goel 5 years, 4 months ago

    CBSE > Class 08 > Mathematics
    • 2 answers

    Ishika Goel 5 years, 4 months ago

    Thank u

    1Thank You

    Anushka Chahar 5 years, 4 months ago

    Solution: n/2 - 3n/4 + 5n/6 = 21 LCM of the denominators 2,4 ,6 is 12. [6n - 3(3n) +2(5n)] / 12=21 [6n-9n+10n] = 12 x 21 -3n+10n =12 x21 7n = 12 x21 n = (12 x 21 ) /7 = 12 x3 = 36 n= 36

    2Thank You

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