SOLUTION: There are 100 students in a school year group. On one day 99% of the students are present. Only 98% of the students with brown hair are present. How many of the 100 students have
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Question 948951: There are 100 students in a school year group. On one day 99% of the students are present. Only 98% of the students with brown hair are present. How many of the 100 students have brown hair? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! If 99% of 100 students were present, only one was missing. That one was 2% of the brown haired students, so:
(1/.02)=50 ANSWER: 50 of the 100 students have brown hair.