CLAT Quantitative Techniques: Bar Graphs

The bar graph below shows the break-up of reported COVID-19 cases by country. All the questions should be answered solely based on the bar graph below.

Which country has the least number of deaths due to COVID-19?

The given bar graph is accurate and to scale, since the number of deaths statistics of each country is placed at the bottom (starts from 0 for all countries), you can compare this statistic across the 4 graphs easily.

Looking at the graph, its clear that the least number of deaths is either in Russia or Italy, so calculate the number of deaths due to COVID-19 in these two countries:
•Russia: 1.6*0.28 = 448,000 (0.448 mn)
•Italy: 2.6*0.16 = 416,000 (0.416 mn)
Answer: D) Italy (Italy has the least number of deaths)

Detailed Explanation:

First, lets note down the total number of reported cases in each country from the graph:

•Brazil – 4 mn
•USA – 5 mn
•Russia – 1.6 mn
•Italy – 2.6 mn

Next, calculate the number of deaths due to COVID-19 in each country:

•Brazil: 4*0.3 = 1.2 mn
•USA: 5*0.15 = 750,000 (0.75 mn)
•Russia: 1.6*0.28 = 448,000 (0.448 mn)
•Italy: 2.6*0.16 = 416,000 (0.416 mn)

Answer: D) Italy (Italy has the least number of deaths)

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