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8 July, 14:46

Sara and Geena can both do flips in the air. The ratio of the number of flips Sara can do to the number of flips Geena can do is 3:8. Geena can do 120 more flips than Sara. If Sara increases the number of her flips by 3 and Geena decreases the number of her flips by 12, what will be the new ratio of the number of flips Sara can do to the number of flips Geena can do?

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  1. 8 July, 15:56
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    (G:S) = (3:20)

    Step-by-step explanation:

    Let represent number of Sara flips by S

    And number of Geena flips by G

    From the information

    Geena can do 120 more flips than sara

    ∴G = S + 120

    Also ratio (S:G) = (3:8)

    Meaning that G = 8 and S = 3

    G = S + X

    X = G - S

    X = 8 - 3

    X = 5

    This mean 120 is the ratio of X

    Ratio of 1 will be equal to 120/5

    24

    Ratio S = 24 x 3 = 72

    Ratio G = 24 x 8 = 192

    The original ratio (G:S) = (72:192)

    If Geena reduces her flip by 12

    That Is 192 - 12 = 180

    And Sara increases her flip by 3

    24+3 = 27

    Then the new ratio will be

    (27:180)

    If you divide through by 9 the new ratio will be

    27/9 = 3 : 180/9 = 20

    (G:S) = (3:20)
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