SIFT Math 2

Question 1

A helicopter travels 240 miles in 2 hours. What is its average speed in miles per hour?

Accepted Answer

120 mph

Answer

Speed = Distance / Time = 240 / 2 = 120 mph.

Question 2

If fuel costs $4.50 per gallon and a helicopter uses 35 gallons per hour, how much does a 3-hour flight cost in fuel?

Accepted Answer

$472.50

Answer

Fuel per flight = 35 gal/hr × 3 hr = 105 gallons. Cost = 105 × $4.50 = $472.50.

Question 3

Solve for x: 3x + 7 = 22

Accepted Answer

x = 5

Answer

Subtract 7 from both sides: 3x = 15. Divide by 3: x = 5.

Question 4

A circle has a radius of 7 cm. What is its area? (Use π ≈ 3.14)

Accepted Answer

153.86 cm²

Answer

Area = πr² = 3.14 × 7² = 3.14 × 49 = 153.86 cm².

Question 5

A unit has 240 soldiers. If 15% are assigned to aviation duties, how many soldiers work in aviation?

Accepted Answer

36

Answer

15% of 240 = 0.15 × 240 = 36 soldiers.

SIFT Exam Practice Test