A server processes 120 requests per minute. How many requests are processed in 15 minutes?

A server processes 120 requests per minute. How many requests are processed in 15 minutes?

• A. 1200
• B. 1800
• C. 2400
• D. 3600

Answer: (B)

Rate multiplied by time gives the total. The server handles 120 requests every minute for 15 minutes, so you multiply 120 by 15. 120 × 15 = 1800. So 1800 requests are processed in that period. A quick check: in sixty minutes it would be 120 × 60 = 7200, and a quarter of that hour (15 minutes) is a quarter of 7200, which is 1800. The numbers 1200 or 3600 would come from using 10 or 30 minutes, which isn’t the time given.

Rate multiplied by time gives the total. The server handles 120 requests every minute for 15 minutes, so you multiply 120 by 15. 120 × 15 = 1800. So 1800 requests are processed in that period. A quick check: in sixty minutes it would be 120 × 60 = 7200, and a quarter of that hour (15 minutes) is a quarter of 7200, which is 1800. The numbers 1200 or 3600 would come from using 10 or 30 minutes, which isn’t the time given.