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math logic

posted by on .

There were 1320 pumpkins in a pumpkin patch,
but it was difficult for farmer Joe to find the
perfect pumpkin.
• Every third pumpkin was too small.
• Every fourth pumpkin was too green.
• Every fifth pumpkin had a broken stem.
• Every sixth pumpkin had the wrong shape.
How many perfect pumpkins did farmer Joe find
in the pumpkin patch?

we thought the answer was 440. 1320/6=220. Then 1320-220=1100. then 1100/5=220. then subtract 1100-220=880 nd so on...does that make sense?

  • math logic - ,

    see the solution I gave to your question earlier.

    http://www.jiskha.com/display.cgi?id=1224212047

  • math logic - ,

    Assuming that they can have no more than one defect, the fraction with no defects is
    (1- 1/3)*(1- 1/4)*(1- 1/5)*(1- 1/6)
    = (2/3)(3/4)(4/5)(5/6) = 120/360 = 1/3

    1/3 of 1320 is 440

    A different answer could be obtained by assuming the defects occur at regular intervals in a lineup. In this case, multiple defects would be possible for some pumpkins.

  • yskn mohkebfs - ,

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