GMAT Practice Question Set #35 (Question 103-105)

Data Sufficiency Question #103: Price Sensitivity on Chocolate Bar  
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If the price of a chocolate bar is doubled, by what percent will sales (quantity sold) of the chocolate bar decrease? Assume a direct inverse proportional relationship between price increase in cents versus sales decrease by percentage.

(1) For every 15 cent increase in price, the sales (quantity sold) will decrease by 10%

(2) Each chocolate bar now costs 99 cents

 
(A)

Statement 1 alone is sufficient but statement 2 alone is not sufficient to answer the question asked.

(B)

Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer the question asked.

(C)

Both statements 1 and 2 together are sufficient to answer the question but neither statement is sufficient alone.

(D)

Each statement alone is sufficient to answer the question.

(E)

Statements 1 and 2 are not sufficient to answer the question asked and additional data is needed to answer the statements.

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