OAR OAR Math Skills: Word Problems 5

Question 1

A Navy recruiter must sign 18 enlistments in a 30-day month. By day 20 she has signed 13. How many enlistments per day must she average for the remaining 10 days?

Accepted Answer

0.5 per day

Answer

Remaining enlistments = 18 - 13 = 5; remaining days = 10; rate = 5 / 10 = 0.5 per day.

Question 2

A ship's mess serves 480 meals daily: 60% breakfast, 25% lunch, and the rest dinner. How many dinner meals are served each day?

Accepted Answer

72

Answer

Dinner percentage = 100% - 60% - 25% = 15%; dinner meals = 0.15 x 480 = 72.

Question 3

Two ships leave the same port simultaneously, one heading north at 22 knots and one heading south at 18 knots. How far apart are they after 5 hours?

Accepted Answer

200 nautical miles

Answer

Northbound ship = 22 x 5 = 110 nm; southbound ship = 18 x 5 = 90 nm; total separation = 200 nm.

Question 4

A project requires 6 officers working 8 hours per day for 10 days. If 2 officers are reassigned, how many hours per day must the remaining 4 work to finish on time?

Accepted Answer

12 hours

Answer

Total work = 6 x 8 x 10 = 480 officer-hours; hours per day = 480 / (4 x 10) = 12 hours.

Question 5

A base hospital has 120 beds; 78 are occupied. If 12 more patients are admitted and 5 are discharged, what percentage of beds are then occupied?

Accepted Answer

70.8%

Answer

New occupied = 78 + 12 - 5 = 85; percentage = (85 / 120) x 100 = 70.8%.

OAR Test Practice Test

OAR Test Practice Test

OAR OAR Math Skills: Word Problems 5