Posted by Manasa on Tuesday, November 30, 2010 at 11:59am.
Half of the students in Sonia's class are girls. Half of the girls have brown hair. Half of the brown haired girls have brown eyes. There are 4 girls with brown hair and brown eyes. How many students are in Sonia's class?

Math  Ms. Sue, Tuesday, November 30, 2010 at 12:09pm
(1/2)(1/2)(1/2)n = 4
1/8n = 4
n = 4 / (1/8)
n = 4 * (8/1)
n = ?

Math  Manasa, Tuesday, November 30, 2010 at 12:51pm
32 students in Sonia's class

Math  Ms. Sue, Tuesday, November 30, 2010 at 12:53pm
Right.

Math  person, Tuesday, November 30, 2010 at 11:19pm
Work backwards from four and use the halves.
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