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A positive number is 5 times …

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A positive number is 5 times the same number. If 21 is added to both the number becomes twice the other new number. What are the numbers

    • Posted by Rishi Dev 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Yogita Ingle 5 years ago

    Let the smaller number = x
    bigger number = 5x. -----(we need this.)

    if 21 is added to both; 5x+21 = 2×(x+21)

    5x + 21 = 2x + 42

    5x - 2x = 42 - 21

    3x =. 21

    x = 21/3= 7

    So the positive number is = 5×7 = 35

     

     

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