Aptitude Test: Percentage
No. of Questions: 10
Time Duration: 10 min
1. Calculate the value of: 40% of 250 minus 20% of 150
2. The price of a laptop was reduced by 30%. If the original price was an integer value in dollars, which of the following could be the final (sale) price?
3. The number of trees in a forest has been increasing by 20% annually. If there are currently 8,640 trees, how many trees were there 2 years ago?
4. A survey indicates that 15% of potential attendees for an event will not actually show up. If the organizers want exactly 510 people to attend, how many invitations should they send out?
5. A company's profit was $50,000. It decreased by 10% in the first quarter and then decreased by another 20% in the second quarter. What was the profit at the end of the second quarter?
6. A store increases the price of an item by 50% but then offers a 40% discount on the new price. What is the net percentage change compared to the original price?
7. At a pet store, the ratio of dogs to cats is 7:3. If 40% of the dogs are puppies and 20% of the cats are kittens, what percentage of the total animals (dogs and cats) are puppies or kittens?
8. Maya's savings account balance increased by 10% in year 1, increased by 20% in year 2, and decreased by 5% in year 3. What is the net percentage increase in her balance over the three-year period?
9. If quantity A is 50% more than quantity B, and quantity B is 40% of quantity C, then A is what percentage of C?
10. A number N is increased by y% and the result is then decreased by y%. If y is a positive percentage (y>0), the final number is:
