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Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT PDF Download

Tips and Tricks

  • Before you solve any of the questions , first you have to understand what the bar graph is trying to say. Make the habit of scanning the heading firsts.
  • You have to understand what is on the x-axis and y-axis and what is the relation between two in terms of length bars.
  • These type of questions are pretty easy to solve. Just interpret the data in your mind. Check the length of bars . The answers will come surely.
  • Sometimes the calculations of one question will help to calculate the calculations of some other question.

Important Points

  • Read the questions along with the instruction carefully.
  • Use Approximation in Calculations.
  • Effective analysis of given data.
  • Do not assume anything other than data provided.
  • Skip unnecessary calculations.
  • Accuracy is the key factor.
  • Clear the fundamentals of DI. DI questions are based on Averages , Percentage and Ratio and Proportion concepts .

Examples

Common Data for Question 1 to 5:
Production of paper (in lakh tonnes) by three companies X, Y and Z owned by Ratan Tata over the years is given below in a graph. Study the graph and answer the questions that follow.

In X- axis year is given and in Y- axis Quantity in Lakh Tones is given.

Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT

Q1: In 1999 Production of Paper of X is What Percent of Production of Paper Y.
 (a)  25 %
(b)  30 %
(c)  35 %
(d)  22 %
(e) None of these
 Ans: e

Sol:
In 1999 Production of Paper X = 50

In 1999 Production of Paper Y = 40

Required Percentage Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT


Q2: What is the difference between the production of company Z in 1998 and company Y in 1996?
(a) 2,00,000 tons
(b) 20,00,000 tons
(c) 20,000 tons
(d) 2,00,00,000 tons

Ans: b
Sol: Required difference
= [(45 – 25)  x  1,00,000] tons
= 20,00,000 tons.

 
Q3: What is the ratio of the average production of company X in the period 1998-2000 to the average production of company Y in the same period?
(a)  1:1
(b)  15:17
(c) 23:25
(d)  27:29
(e) None of these 
Ans: c

Sol: 
Average production of company X in the period 1998-2000 = Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLATlakh tons.
Average production of company Y in the period 1998-2000 = Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT lakh tons.

Required ratio = Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT


Q4: What is the percentage increase in the production of Company Y from 1996 to 1999? 
(a) 30%
(b) 60%
(c) 50%
(d) 45%

Ans: b
Sol: Percentage increase in the production of Company Y from 1996 to 1999

Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT

The document Bar Chart: Shortcuts & Tricks | Quantitative Techniques for CLAT is a part of the CLAT Course Quantitative Techniques for CLAT.
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