Practice Questions & Correct Answers |
Complete Math Exam | A+ Graded
1. A mechanic earns $18 per hour and works 35 hours in one week. How much does the
mechanic earn?
A. $580
B. $610
C. $630
D. $650
Correct Answer: C. $630
Rationale:
18 × 35 = 630. The mechanic earns $630.
2. A truck travels 420 miles in 7 hours. What is its average speed?
A. 50 mph
B. 60 mph
C. 65 mph
D. 70 mph
Correct Answer: B. 60 mph
Rationale:
Speed = distance ÷ time.
420 ÷ 7 = 60 mph.
3. A warehouse contains 240 boxes. If 25% are shipped, how many boxes remain?
A. 60
B. 120
C. 180
D. 200
,Correct Answer: C. 180
Rationale:
25% of 240 = 60.
240 − 60 = 180 boxes.
4. A machine produces 45 parts in 5 hours. At the same rate, how many parts will it produce
in 8 hours?
A. 64
B. 72
C. 80
D. 90
Correct Answer: B. 72
Rationale:
45 ÷ 5 = 9 parts per hour.
9 × 8 = 72 parts.
5. A $500 machine is discounted by 15%. What is the sale price?
A. $400
B. $415
C. $425
D. $450
Correct Answer: C. $425
Rationale:
15% of $500 = $75.
$500 − $75 = $425.
6. A worker has 3/4 of a 40-gallon tank available. How many gallons are available?
A. 20
B. 25
C. 30
D. 35
,Correct Answer: C. 30
Rationale:
40 × 3/4 = 30 gallons.
7. Eight identical bolts cost $12. What is the cost of 20 bolts at the same rate?
A. $24
B. $28
C. $30
D. $32
Correct Answer: C. $30
Rationale:
Each bolt costs $12 ÷ 8 = $1.50.
20 × $1.50 = $30.
8. A vehicle uses 12 gallons of fuel to travel 360 miles. How many miles does it travel per
gallon?
A. 20
B. 25
C. 30
D. 36
Correct Answer: C. 30
Rationale:
360 ÷ 12 = 30 miles per gallon.
9. A 72-foot cable is cut into 6 equal sections. How long is each section?
A. 10 ft
B. 12 ft
C. 14 ft
D. 16 ft
Correct Answer: B. 12 ft
, Rationale:
72 ÷ 6 = 12 feet.
10. A tank is filled at a rate of 8 gallons every 2 minutes. How many gallons are added in 15
minutes?
A. 40
B. 50
C. 60
D. 75
Correct Answer: C. 60
Rationale:
8 ÷ 2 = 4 gallons per minute.
4 × 15 = 60 gallons.
11. A worker completes 3/5 of a job in one day. At the same rate, what fraction remains?
A. 1/5
B. 2/5
C. 3/5
D. 4/5
Correct Answer: B. 2/5
Rationale:
The entire job is 5/5.
5/5 − 3/5 = 2/5.
12. A $750 item increases in price by 20%. What is the new price?
A. $800
B. $875
C. $900
D. $950
Correct Answer: C. $900