Table: Monthly electricity use of an office, in kWh — January 1,200; February 1,000; March 1,500; April 1,800. What was the average monthly use?

Correct answer: D. 1,375 kWh

Average = 5,500 ÷ 4 = 1,375 kWh. Dividing by 4 is the same as halving twice: 5,500 → 2,750 → 1,375. The total of 5,500 kWh comes from adding the four months: 1,200 + 1,000 + 1,500 + 1,800.

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Answer and explanation

The correct answer is D. 1,375 kWh

Average = 5,500 ÷ 4 = 1,375 kWh. Dividing by 4 is the same as halving twice: 5,500 → 2,750 → 1,375. The total of 5,500 kWh comes from adding the four months: 1,200 + 1,000 + 1,500 + 1,800.

Topic: Data Interpretation Practice MCQs · Subject: Analytical Ability