(Electronic Data Processing Test) Numerical Reasoning Flashcards
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Read the first 7 (Electronic Data Processing Test) Numerical Reasoning flashcards as text
A server processes 1,440 transactions per hour. How many transactions does it process per minute?
Answer: 24
1,440 ÷ 60 minutes = 24 transactions per minute.
A dataset grows from 250 MB to 400 MB. What is the percentage increase?
Answer: 60%
(400 − 250) ÷ 250 × 100 = 60%.
If 5 programmers can complete a project in 12 days, how many days will 3 programmers need for the same project?
Answer: 20
Total work = 5 × 12 = 60 programmer-days; 60 ÷ 3 = 20 days.
A binary number 1011 converted to decimal is:
Answer: 11
1×8 + 0×4 + 1×2 + 1×1 = 8+0+2+1 = 11.
A network transfers data at 8 Mbps. How long (in seconds) does it take to transfer a 40 MB file?
Answer: 40
40 MB = 320 Mb; 320 Mb ÷ 8 Mbps = 40 seconds.
If the average of six numbers is 15, what is their sum?
Answer: 90
Sum = average × count = 15 × 6 = 90.
A storage array uses 3 out of every 4 sectors for data and the rest for parity. If there are 256 total sectors, how many are used for parity?
Answer: 64
1/4 of 256 = 64 sectors used for parity.
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