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Re: A pizza place sells vegetarian pizza for a certain price and meat pizz [#permalink]
Bunuel wrote:
A pizza place sells vegetarian pizza for a certain price and meat pizza for a certain price. If Dana, Alex and Tim bought pizza from this store, how much did Dana pay for 2 vegetarian pizzas?

(1) Tim bought 1 meat pizza and one vegetarian pizza for $18.80.
(2) Alex bought 2 meat pizzas and 2 vegetarian pizzas for $37.60.


Soln:

Let the cost of veggie pizza be V and that of meat pizza be M.

From (1)

(1) Tim bought 1 meat pizza and one vegetarian pizza for $18.80.

V + M = 18.80

NOT SUFFICIENT

From (2)

(2) Alex bought 2 meat pizzas and 2 vegetarian pizzas for $37.60.

2V + 2M = 37.60 ...... which can further be reduced to... V + M = 18.80

The same equation as (1)..... NOT SUFFICIENT

(1) and (2) combined.....again you have 2 unknowns and only 1 equation...hence NOT SUFFICIENT
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Re: A pizza place sells vegetarian pizza for a certain price and meat pizz [#permalink]
A pizza place sells vegetarian pizza for a certain price and meat pizza for a certain price. If Dana, Alex and Tim bought pizza from this store, how much did Dana pay for 2 vegetarian pizzas?

(1) Tim bought 1 meat pizza and one vegetarian pizza for $18.80.
(2) Alex bought 2 meat pizzas and 2 vegetarian pizzas for $37.60.

m=cost of a meat pizza
v=cost of a vegetable pizza

Equation 1: m+ v=18.80
Equation 2; 2m + 2v= 37.60 --> m + v=18.80 , which is same as equation 1.
There are two unknowns and we have only one equation. Both the statements are insufficient.

Hence the answer is E.
GMAT Club Bot
Re: A pizza place sells vegetarian pizza for a certain price and meat pizz [#permalink]
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