High School Dance

*Submitted by Dr. Ted Stanford, NMSU Mathematician.


  • Ocotillo High School held a dance last week to celebrate the start of a new school year. Some of the students came in boy-girl pairs, and some came as singles. If 40% of the boys came with a date, and 50% of the girls came with a date, what percentage of all students came with a date?

  • Answer:
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