Math>> Help!!

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Seats for Mathematics, Physics and Biology in a school are in the ratio 5:7:8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

  • Math>> Help!! -

    well...not sure if my answer is right but...
    so the original ratio is 5:7:8
    the increase is 40%,50%, and 75% respectively...
    so...
    5 x 0.4 = 2
    7 x 0.5 = 3.5
    8 x 0.75 = 6
    Therefore the new ratio is:
    4:7:12 (remember you cant hav decimals)
    and always remember...HERP THE DERP!!

  • Math>> Help!! -

    Looks like you have the ratios of the increases, but I think they are asking about the final seat totals.

    That would be
    5*1.4 : 6*1.5 : 7*1.75
    = 7:9:12.25
    = 28:36:49

  • Math -

    14:21:24

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