Bulbul needs to make a cake and some cookies

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Bulbul needs to make a cake and some cookies

by sanju09 » Thu Mar 19, 2009 5:46 am
Bulbul needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Bulbul has 15/16 cups of sugar. Does she have enough sugar, or how much more does she need?
A. She has enough sugar.
B. She needs 1/8 of a cup of sugar.
C. She needs 3/80 of a cup of sugar.
D. She needs 4/19 of a cup of sugar.
E. She needs 1/9 of a cup of sugar.



OA C
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by DanaJ » Thu Mar 19, 2009 6:01 am
Add the two: 3/8 + 3/5 = 39/40 - sugar needed.

Now, 15/16 cups of sugar are at hand. The difference 39/40 - 15/16 = 3/80, meaning that the required amount of sugar is more than what she has by 3/80.

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by sanju09 » Thu Mar 19, 2009 6:14 am
DanaJ wrote:Add the two: 3/8 + 3/5 = 39/40 - sugar needed.

Now, 15/16 cups of sugar are at hand. The difference 39/40 - 15/16 = 3/80, meaning that the required amount of sugar is more than what she has by 3/80.
[spoiler]:) the sitters aren't meant for you to explain, I expect big-bangs from you, DanaJ. Again kidding :roll: [/spoiler]
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com