The price of 1 pencil is subtracted from the price of 5 pens is equal to one fifth of the price of 3 pencils and 7 pens. Find the price of pencil as a percentage of the price of pen.

Correct answer is '225'. Can you explain this answer?

Related Test: CAT Quantitative Aptitude MCQ - 1

ISHIKA GARG
answered
Aug 01, 2019

Let the price of one pencil be x and the price of one pen be y.

Now, (5y - x) = (3x + 7y)/5 25y - 5x = 3x + 7y

Now, (5y - x) = (3x + 7y)/5 25y - 5x = 3x + 7y

x = 2.25y

Thus, the price of pencil as percentage of the price of pen = (2.25y /y) x 100 = 225%

Answer: 225

Thus, the price of pencil as percentage of the price of pen = (2.25y /y) x 100 = 225%

Answer: 225

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