OAR OAR Math Skills: Word Problems 4

Question 1

An officer's gross pay is $5,600 per month. Deductions total 28% of gross pay. What is the officer's net monthly pay?

Accepted Answer

$4,032

Answer

Deductions = 0.28 x $5,600 = $1,568; net pay = $5,600 - $1,568 = $4,032.

Question 2

A supply depot receives 3 shipments per week, each containing 120 units. The depot issues 48 units per day, 6 days a week. What is the net change in inventory per week?

Accepted Answer

+72 units

Answer

Received = 3 x 120 = 360 units; issued = 48 x 6 = 288 units; net = 360 - 288 = +72 units.

Question 3

A Navy vessel travels north at 20 knots for 3 hours, then east at 15 knots for 4 hours. What is the straight-line distance from the starting point?

Accepted Answer

85 nautical miles

Answer

North = 60 nm, East = 60 nm; straight-line = sqrt(60^2 + 60^2) = sqrt(7,200) = approximately 84.9 nm.

Question 4

A contractor bids $18,000 to paint a facility. Materials cost $4,800 and labor is $280 per day for 10 days. What is the contractor's profit?

Accepted Answer

$9,200

Answer

Labor = 10 x $280 = $2,800; total cost = $4,800 + $2,800 = $7,600; profit = $18,000 - $7,600 = $10,400.

Question 5

A base gym has 240 members. 35% use it in the morning, 45% in the afternoon, and the rest in the evening. How many members work out in the evening?

Accepted Answer

48

Answer

Evening percentage = 100% - 35% - 45% = 20%; evening members = 0.20 x 240 = 48.

OAR Test Practice Test

OAR Test Practice Test

OAR OAR Math Skills: Word Problems 4