Math

Amy, Betty and Clara went shopping together. Amy spent 20% more than Betty. Betty spent 25% more than Clara. If Amy spent $58 more than Clara, how much did they spend altogether?
(Please Show Working Clearly and try not to use Algebra)

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  1. a = 1.2b
    b = 1.25c
    a = c+58

    Time to stop avoiding algebra!

    1.2(1.25c) = c+58
    1.5c = c+58
    0.5c = 58
    c = 116

    Clara spent 116
    Amy spent 174
    Betty spent 174/1.2 = 145

    so, add them all up.

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