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SVP
Status: It's near - I can see.
Joined: 13 Apr 2013
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Location: India
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24 Dec 2018, 23:10
2
00:00

Difficulty:

15% (low)

Question Stats:

79% (01:16) correct 21% (02:00) wrong based on 38 sessions

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a. 112%

b. 110%

c. 108%

d. 98%

e. 90%

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Math Expert
Joined: 02 Aug 2009
Posts: 7752

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26 Dec 2018, 07:36
AkshdeepS wrote:

a. 112%

b. 110%

c. 108%

d. 98%

e. 90%

As the other two are related to B, let us take B as 100...
So A is 40% greater, meaning A is 100+40% of 100=100+40=140
Now B is 30% less than C, so 100=C-30% of C=70 % of C...C=100*100/70=1000/7=143
So A is 140 and C is 143...
Therefore, A is 100*140/143=~98%

D
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Concentration: Finance, Operations
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17 Jun 2019, 11:29
I took C as being 100, which will then make B = 70 and then A = 98

It was easier for me to do 10% of 70 = 7 then, 7 x 4 to get 40% which equals 28. then 70 + 28 = 98
Manager
Joined: 17 Jul 2018
Posts: 80
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17 Jun 2019, 11:46
kapstone1996 wrote:
I took C as being 100, which will then make B = 70 and then A = 98

It was easier for me to do 10% of 70 = 7 then, 7 x 4 to get 40% which equals 28. then 70 + 28 = 98

I took C as my starting point just as you did

C=x
B=0.7x
A=0.7x+(0.4X0.7)x
A=.98x

98%

same approach just a different look.
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