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The prices of tea and coffee per kg were the same in june. In july the

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The prices of tea and coffee per kg were the same in june. In july the [#permalink]

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The prices of tea and coffee per kg were the same in june. In july the price of coffee shot up by 20% and that of tea dropped by 20%. if in july , a mixture containing equal quantities of tea and coffee costs 50/kg. how much did a kg of coffee cost in june ?

a) 50
b)60
c)80
d)100
e)120
[Reveal] Spoiler: OA

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The prices of tea and coffee per kg were the same in june. In july the [#permalink]

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gmatash wrote:
The prices of tea and coffee per kg were the same in june. In july the price of coffee shot up by 20% and that of tea dropped by 20%. if in july , a mixture containing equal quantities of tea and coffee costs 50/kg. how much did a kg of coffee cost in june ?

a) 50
b)60
c)80
d)100
e)120



Let the price of tea and coffee be x per kg in June.

Price of tea in July = 1.2x
Price of coffee in July = 0.8x .

In July the price of 1/2 kg (500gm) of tea and 1/2 kg (500gm) of coffee (equal quantities) = 50

1.2x(1/2) + 0.8x(1/2) = 50

=> x =50

Thus proved...option A.

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Re: The prices of tea and coffee per kg were the same in june. In july the [#permalink]

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New post 14 Oct 2017, 08:06
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Re: The prices of tea and coffee per kg were the same in june. In july the   [#permalink] 14 Oct 2017, 08:06
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