Arithmetic Practice Test 2

1. A wheel on a bicycle makes 71 1/4 revolutions per minute. If it rotates for 40 minutes, how many revolutions does it make?
A) 2840 ¼
B) 1 25/32
C) None of these
D) 2850
2. Courtney ran the 100-meter relay in 21.4 seconds, and later ran the same distance in 16.7 seconds. By how much did she improve her time?
A) 4.7 seconds
B) 38.1 seconds
C) 5.7 seconds
D) None of these

3. Solve: 38.36 + x = 88.334

A) None of these
B) 84.498
C) 49.974
D) 126.694
4. Find decimal notation: 0.71%
A) 0.071
B) 71
C) 0.71
D) 0.0071
5. What is 60.5% of 80?
A) 0.13
B) 484
C) 4.84
D) 48.4

6. In one year, the population of Elm Town increased from 900 to 981. What was the percent of increase?

A) 9%
B) 1.09%
C ) 0.917%
D) 8.257%
7. Solve: ¾ x=1/2
A) 3/8
B) 2/3
C) None of these
D) 1/6
8. When 10 is subtracted from two times a certain number, the result is twenty-eight (28). What is the number?
A) 17
B) 19
C) None of these
D) 22
9. A pharmacist has 100 ml of a solution of alcohol and water; 5% is alcohol. How many milliliters are alcohol?
A) 20 ml
B) 2000 ml
C) 5 ml
D) 95 ml
10. Approximate Ö15 to three decimal places.
A) 225
B) 7.500
C) 3.873
D) 3.742


 

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