Direction : Study the following table and answer the questions that follow : Electricity consumption (in MWh) in three quarters (Q1, Q2 and Q3) by five industrial zones (U, W, X, Y and Z)Industrial Zone Electricity Consumption (in MWh) Total Q1 Q2 Q3 U 120 150 180 450 W 180 210 240 630 X 160 180 220 560 Y 240 240 300 780 Z 200 220 260 680 Total 900 1000 1200 3100
Based on the total electricity consumption across Q1, Q2 and Q3, which of the following zones recorded the second-highest consumption ?
Zone Z
The ‘Total’ column of the table already gives each zone’s combined consumption over the three quarters, so the zones can be ranked directly from it.
Step 1 — Totals: U = 450, W = 630, X = 560, Y = 780 and Z = 680 MWh (each equals the sum of its Q1, Q2 and Q3 values, e.g. Z: \(200 + 220 + 260 = 680\)).
Step 2 — Descending order: Y (780) \(\gt\) Z (680) \(\gt\) W (630) \(\gt\) X (560) \(\gt\) U (450).
Step 3 — The highest is Zone Y, so the second-highest is Zone Z with 680 MWh.
Zone Y is the highest, not the second-highest; Zone W is third and Zone X is fourth.
Zone Z option is correct.
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