Multiple choice

Passage

Directions: Study the following table carefully and answer the question that follows. PRODUCTION OF MACHINES (in units) TYPE 1980 1981 1982 1983 1984 1985 I 60 80 75 85 90 94 II 28 40 40 60 65 71 III 39 45 53 70 75 78 IV 30 60 120 90 100 92 V 60 55 52 85 90 95

What was the approximate percentage increase in the production of all types of machines together, from the year 1981 to the year 1984?

  1. 10

  2. 20

  3. 40

  4. 50

  5. 60
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total production in 1981: 80+40+45+60+55 = 280. Total production in 1984: 90+65+75+100+90 = 420. Percentage increase = ((420-280)/280) * 100 = (140/280) * 100 = 50%.

AI explanation

The total production of all machines in 1981 is 80 + 40 + 45 + 60 + 55 = 280 units. The total production in 1984 is 90 + 65 + 75 + 100 + 90 = 420 units. The percentage increase is calculated as ((420 - 280) / 280) * 100, which simplifies to (140 / 280) * 100, resulting in a 50 percent increase.

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