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05 Jun 2019, 02:27
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A solution of 140 liters of acid contains 10% of acid and the remaining is water. How many liters of acid needs to be added so that the concentration of acid becomes 1/8th of the solution.
A. 1
B. 2
C. 3
D. 4
E. 5
A. 1
B. 2
C. 3
D. 4
E. 5
05 Jun 2019, 02:34
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Let x be the pure acid
(140+x)*\(\frac{1}{8}\)=140*0.1+x
x=4
IMO
Ans: D
(140+x)*\(\frac{1}{8}\)=140*0.1+x
x=4
IMO
Ans: D
RupamPaul13
Joined: 08 Apr 2019
Last visit: 03 Nov 2020
Posts: 24
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Given Kudos: 43
Location: India
Schools: IIMC MBAEx "21 IIMB EPGP "21 (A)
GMAT 1: 700 Q50 V34
05 Jun 2019, 02:36
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Let x be the amount of acid required.
(140+x)*1/8=14+x; x=4(Option D)
(140+x)*1/8=14+x; x=4(Option D)
