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In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited guests attended the party and if all the invited female guests attended, what would be the ratio of males to females among the attendees in the party?

  • A.2:3
  • B.1:1
  • C.3:2
  • D.2:1

Answer: B

The ratio of males to females among the attendees is 1:1.

Take 100 invited guests: 60 men and 40 women. 80 attended, and all 40 women were among them, so the other 40 attendees were men. That gives 40 men to 40 women, or 1:1.

3:2 is the ratio among those invited, not those who came. 2:3 and 2:1 do not match any count in the problem; the key step is that the women account for exactly half of the 80 who attended.

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