# How to solve Bar Charts Quickly

## How to Solve Bar Chart Quickly

• Use Approximation in Calculations.
• Effective analysis of given data.
• Skip unnecessary calculations.
• Accuracy is the key factor. ## How To Solve Bar Chart- In Data Interpretation.

### Common Data Question for 1 to 4

The following chart represents the number of students who passed the CAT exam or the XAT exam or the CET exam or None of these exams. (Assume that there are no students who passed more than one exam.)

Number of students who qualified CAT/XAT/CET Exams ### Question 1.

Which year showed the best result in MBA entrance exams (in terms of percentage of students who cleared) ?
 A. 2000 B. 2001 C. 2002 D. Cannot be determined

Explanation:

Compare the respective pass percentage for three years : 2000, 2001 and 2002

= $\frac{140}{170}\times 100 < \frac{150}{180}\times 100$ and $\frac{150}{180}\times 100 > \frac{160}{200}\times 100$

= 82.35% < 83.33% and 83.33% > 80%

### Question 2.

What was the percentage of students who succeeded in at least one of three exams in 2000 ?

 A. 82.4 % B. 82.8 % C. 82.35 % D. 83.3 %

Explanation:

Total percentage of students who succeeded in at least one of three exams in 2000 =$\frac{140}{170}\times 100$ = 82.35 %

### Question 3.

What is the percentage increase in the number of students in 2002 over 2000 ?
 A. 30 % B. 17.64 % C. 117.6 % D. 85 %

Explanation:

Total percentage increase in the number of students in 2002 over 2000 is = $\frac{30}{170}\times 100$ = 17.64 %

### Question 4.

What is the percentage of students who cleared CAT in 2000 ?
 A. 19.56 % B. 12.65 % C. 14.28 % D. 11.76 %

Explanation:

Total percentage of students who cleared CAT in 2000 = $\frac{20}{170}\times 100$= 11.76 %

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