GRE Exam Numerical Ability Percentage

Mark got a 30% discount on a movie ticket. When the price of the movie ticket increased by 50%, the amount of discount in dollars reminded the same. What is the percent discount that he received on the new ticket price?

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GRE Other Question

arthematic
algebra
geometry
At a fruit stand, apples can be purchased for $0.15 each and pears for $0.20 each. At these rates, a bag of apples and pears was purchased for $3.80. If the bag contained 21 pieces of fruit, how many of the pieces were pears