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Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
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Approach:

Savings per chocolate is 15% of Original price(P) or Rs 1.35, Hence \(\frac{15}{100} P = 1.35 => P = 9\)

New Price of chocolate: 9 - 1.35 = 7.65

Option A
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Solution



Given
In this question, we are given that
    • The prices of chocolates dropped by 15 % and thus Rashi was able to save Rs. 1.35 on each chocolate

To find
We need to determine
    • The new price of one chocolate

Approach and Working out
The 15% price drop resulted in savings of Rs. 1.35.
    • Hence, 15% of the original price = 1.35
    • Therefore, original price = 1.35/0.15 = 9

As the price drop is 15% with respect to the original price, we can say that
    • New price of the chocolate = 9 – 15% of 9 = 85% of 9 = Rs. 7.65

Thus, option A is the correct answer.

Correct Answer: Option A
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Have never seen the "Rs." currency on an official mock before -- is there anything I should know about this particular type of currency before taking the real test?
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crustaceanlover1
Have never seen the "Rs." currency on an official mock before -- is there anything I should know about this particular type of currency before taking the real test?
You don't have to worry about that, if there is a question where multiple currencies are involved - the problem will mention the conversion rates if it's essential to do so.
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Let price of one chocolate be c.
Price after price-cut of 15 percent would be 0.85c. So savings per chocolate would be 0.15c.
It is given that savings per chocolate is 1.35. Which means 0.15c=1.35, c=9.
So new price which is 0.85c would be 7.65 (0.85*9).
Correct answer: A
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