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kiran120680
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Joined: 18 Feb 2019
Last visit: 27 Jul 2022
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Location: India
Schools: AGSM '20 EDHEC Sept 2019 Intake Great Lakes '21 IE
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GPA: 3.6
01 Mar 2019, 00:06
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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Question Stats:
73% (02:25) correct
27%
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wrong
based on 604
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A perfect cake should have 25% cream and 75% bread. Oman bought material for a 5kg cake with 35% cream and 65% bread. How many more kg of bread should he buy if he wants to make a perfect cake?
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
eabhgoy
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Concentration: Strategy, Marketing
Schools: CBS '21 Yale '21 INSEAD Jan'21 Intake IMD '21 (A)
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GPA: 3.2
WE:Marketing (Telecommunications)
01 Mar 2019, 03:21
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kiran120680
A perfect cake should have 25% cream and 75% bread. Oman bought material for a 5kg cake with 35% cream and 65% bread. How many more kg of bread should he buy if he wants to make a perfect cake?
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
5 kg material has been bought with 35% cream and 65% bread
=> Amount of cream = 35% of 5 kg = 1.75 Kgs
=> Amount of bread = 65% of 5 kg = 3.25 Kgs (Another way would be 5-1.75 = 3.25Kgs)
Now we want to convert the ratio from 35%-65% to 25%-75% by buying more bread.
Here the amount of cream remains constant, hence 1.75kgs of cream should be 25% of the total amount.
Hence we need to have 75% of the bread. Now 75% is 3 times 25%, therefore the amount of bread we should have is 3 times the amount of cream
=> 3*1.75 = 5.25 kgs of bread is required
We have 3.25 kgs of bread and hence require 2 extra kgs of bread.
Hence A is the correct answer.
01 Mar 2019, 05:52
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kiran120680
A perfect cake should have 25% cream and 75% bread. Oman bought material for a 5kg cake with 35% cream and 65% bread. How many more kg of bread should he buy if he wants to make a perfect cake?
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
A. 2kg
B. 2.5kg
C. 3kg
D. 4kg
E. 5kg
Of the 5 kgs he has bought, 35% is cream.
Cream = 35/100 * 5 = 7/4 kg
Bread = 5 - 7/4 kg = 13/4 kg
The ratio of Cream:Bread should actually be 25:75 = 1:3 so bread should be 3*(7/4) kg = 21/4 kg.
So he should buy another 21/4 - 13/4 = 8/4 = 2 kg of bread.
Answer (A)
