The power company in the chart generated 2,40,000 MWh in all. How many more MWh came from coal than from hydro and solar together? Pie chart titled Electricity generated, by source. Coal 45%; Hydro 20%; Solar 15%; Wind 12%; Others 8%.

The power company in the chart generated…

The power company in the chart generated 2,40,000 MWh in all.

Question 67

MediumOriginal question

The power company in the chart generated 2,40,000 MWh in all. How many more MWh came from coal than from hydro and solar together?

Pie chart titled Electricity generated, by source. Coal 45%; Hydro 20%; Solar 15%; Wind 12%; Others 8%.

24,000 MWhCorrect answerYour answer60,000 MWhCorrect answerYour answer84,000 MWhCorrect answerYour answer1,08,000 MWhCorrect answerYour answer

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CorrectNot quiteAnswer A

Correct answer: A

Coal: 45%. Hydro and solar together: $20\% + 15\% = 35\%$ .
Difference: 10% of the total.
$0.10 \times 2{,}40{,}000 = 24{,}000$ MWh.

Worth noting

60,000 compares coal with hydro alone and leaves out solar. 84,000 is the hydro and solar output itself, not the difference. 1,08,000 is coal's output, not the difference.

Concept: Difference of slices converted into an amount
Typical timeTypical: 80 s
Your timeYours: —

The rule this testsPie charts

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Ten questions from Data Interpretation, at your own pace.

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Ten questions from Data Interpretation, at your own pace.

The power company in the chart generated 2,40,000 MWh in all.

Question 67

Explanation