Medical & Science

20 Questions

20 Minutes

GMAT

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1. From 7:00 AM to 11:00 AM it rained 2.25 inches. At 11:00 AM the rain increased to fall at a rate of 1.25 in. every two hours. How many inches of rain landed on the ground by 5:00 PM?

2. The owner of a hobby store needed to calculate the percentage of customers who purchase wood glue. Upon completing his survey, he noticed that 60% of the people that entered his store purchased an item. Of those customers, 15 percent purchased wood glue. What percent of the people that entered the store purchased wood glue?

3. If 1/x = 3.5. then 1/(x+2) =

4. A store owner is packing small radios into larger boxes that measure 25 in. by 42 in. by 60 in. If the measurement of each radio is 7 in. by 6 in. by 5 in., then how many radios can be placed in the box?

5. Frank is 15 years younger than John. In 5 years John will be twice as old as Frank. How old will Frank be in four years?

6. A store owner decided to raise the price of a particular item by exactly 10%. Of the following which is NOT the new price?

7. The price of a candy bar is $1.00. The price of a ten pack of the same candy bar is $7.40. The ten pack of candy bars is what percentage cheaper then purchasing ten candy bars individually?

8. In a certain department store, which has four sizes of a specific shirt, there are 1/3 as many small shirts as medium shirts, and 1/2 as many large shirts as small shirts. If there are as many x-large shirts as large shirts, what percent of the shirts in the store are medium?

9. A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?

10. A car averages 55 mph for the first 4 hours of a trip and averages 70 mph for each additional hour. The average speed for the entire trip was 60 mph. How many hours long is the trip?

11. (165)2 - (164)2 =

12. If the ticket sales s for a company increases 25% from standard sales to 60 tickets sold, then 60 - s =:

13. How many integers between 100 and 150, inclusive, cannot be evenly divided by 3 nor 5?

14. Susan wants to put up fencing around three sides of her rectangular yard and leave a side of 20 feet unfenced. If the yard has an area of 680 square feet, how many feet of fencing does she need?

15. Which of the following equations has a root in common with x2 - 6x + 5 = 0?

16. A computer store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a part costing $16 before any discount?

17. If "basis points" are defined so that 1 percent is equal to 100 basis points, then 75.5 percent is how many basis points greater than 65.5 percent?

18. If x + 8y = 20 and x = -3y, then y =

19. If 2x + y = 10 and x = 3, what is x - y

20. If a triangle has a base B and the altitude of the triangle is twice the base, then the area of the triangle is