SOLUTION: Jack eats three fifths of a cake, and Jill eats one fourth. If there are still 24 ounces left, then how much did the whole cake weigh? How is this question calculated? Thank yo

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Question 709532: Jack eats three fifths of a cake, and Jill eats one fourth. If there are still 24 ounces left, then how much did the whole cake weigh?
How is this question calculated? Thank you
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
c = ounces of original cake.

c-%283%2F5%29c-%281%2F4%29c=24
c%281-3%2F5-1%2F4%29=24
%2820%2F20-12%2F20-5%2F20%29c=24 [because LCD is 20]
%283%2F20%29c=24
c=%2824%2F3%2920
c=8%2A20
c=160 ounces