Sunday, August 1, 2010

NMOS 2010 Q10

Q10. A shop owner sold only red dresses and blue dresses. The number of red dresses sold on Tuesday was 10% more than that sold on Monday. The number of blue dresses sold on Tuesday was 10% less than that sold on Monday. The total number of dresses sold on Tuesday was 5% more than that sold on Monday. What percentage of the dresses sold on Monday was red?


M --> 10 R + 10 B = 100%


T --> 11 R + 9 B = 105%



90 R + 90 B --> 900%


110 R + 90 B --> 1050%



20 R --> 1050% - 900% = 150%


10 R --> 10/20 x 150% = 75%

1 comment:

  1. iam taking this year my PsLe iwant to pass my psle with flying colours so i could get into RGS BY:oliver

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