Posted by **Brooke** on Wednesday, November 7, 2012 at 10:18pm.

Jill made some cookies. Jill gave 1/4 of her cookies to Bob. Then Jill gave 1/2 of the remaining cookies to Joe. At this point, Jill had 18 cookies left. How many cookies did Jill have at first?

- Math -
**Many**, Wednesday, November 7, 2012 at 10:23pm
T total cookies

T-(Tx1/4) - ((T-(Tx1/4))x1/2) =18

T-T/4 - 3T/4 x 1/2= 18

3T/4-3T/8=18

3T/8=18

3T=144

T=48

- Math -
**Reiny**, Wednesday, November 7, 2012 at 10:27pm
or,

after giving (1/4)T away, she has (3/4)T left

after giving 1/2 of those away, she has (1/2)(3/4)T or (3/8)T left

3T/8 = 18

3T = 144

T = 48

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