Arithmetic Reasoning Word Problems Flashcards

A database contains 1,250,000 records. A cleanup script deletes 4% of the records. How many records remain?

Answer: 1,200,000

Deleted = 1,250,000 × 0.04 = 50,000; remaining = 1,250,000 − 50,000 = 1,200,000.

A project manager divides a $96,000 budget among 4 teams in the ratio 3:2:2:1. How much does the largest team receive?

Answer: $36,000

Total parts = 3+2+2+1 = 8; largest team share = (3/8) × $96,000 = $36,000.

An internet connection downloads at 50 Mbps. A company downloads 18,000 MB of data. How many minutes does the download take?

Answer: 6

Time in seconds = 18,000 MB ÷ 50 Mbps = 360 seconds = 6 minutes.

A help desk resolves 80% of tickets on the first call. If they receive 475 calls on Monday, how many tickets are NOT resolved on the first call?

Answer: 95

Resolved = 475 × 0.80 = 380; not resolved = 475 − 380 = 95.

An IT contractor works 4 days per week, 9 hours per day, and charges $75 per hour. How much does she earn in a 4-week month?

Answer: $10,800

Weekly hours = 4 × 9 = 36; weekly pay = 36 × $75 = $2,700; monthly = $2,700 × 4 = $10,800.

A quality control team finds 3 defective units per every 500 units inspected. If they inspect 12,000 units, how many are defective?

Answer: 72

Defect rate = 3/500; defective units = (3/500) × 12,000 = 72.

A company rents server space for $350 per month. They negotiate a 2-year contract with a 15% annual discount. How much do they save over the 2-year contract?

Answer: $1,260

Annual cost = $350 × 12 = $4,200; 15% discount = $4,200 × 0.15 = $630/year; 2-year savings = $630 × 2 = $1,260.