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Ratio & Proportion

Expert replies
by chetanc » Fri Jul 30, 2010 1:08 am
In what proportions should coffee of type A, type B and Type C be mixed to get coffee which costs $8 for every 100 ounces?

(1) The ratio in which coffee of type A and coffee of type C are mixed is 2:1
(2) Coffee of type A,B &C cost $4,$10 & $6 respectively for 100 Ounces.

Source: Private tutorial Booklet
OA C

No explanation available would appreciate if an explanation can be provided.[/spoiler]
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Source: — Data Sufficiency |

by outreach » Fri Jul 30, 2010 1:24 am
stmt1

A/C=2/1


stmt2
(4/100)A+(10/100)B+(6/100)C=8

(4/100) is price for one ounce of A..similalry for A and B


combine stmt1 and stmt2
sub stmt1 into stmt2
7C+5B=400
only one value satisfied this eq
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