November 13, 2016

Data Interpretation for IBPS PO & Clerk I

Hello friends,

In the previous post we learned Vocabulary in General English section.

Here, we will practice Data Interpretation under Quantitative Aptitude

This set is from the previous paper of RBI Grade B Officer exam.

Let's do.....

Data Interpretation Set I




Directions: Study the following graph to answer the questions below.


The number of students from five schools having a separate liking for different drinks.

Data Interpretation for IBPS, SBI, RBI

Questions

  1. Total number of students of which college prefers maximum percentage of coffee?
    1. P
    2. Q
    3. R
    4. S
    5. T
  2. What is the ratio of the number of students of college S, who prefer tea and cola to number of students of college T who prefer coffee and cola?
    1. 7 : 6
    2. 4 : 5
    3. 6 : 7
    4. 5 : 4
    5. None of these
  3. What is the ratio of number of students of college P who prefer cola to the total number of students of the same college?
    1. 36 3/7
    2. 27 1/5
    3. 31 4/11
    4. 29 1/3
    5. None of these
  4. What is the percentage of students of all colleges who drink tea to the total number of students?
    1. 32
    2. 47
    3. 51
    4. 24
    5. None of these
  5. What is the total number of students of all colleges who drinks cola?
    1. 2000
    2. 1900
    3. 2400
    4. 1500
    5. None of these

Answers:

  1. 3
  2. 4
  3. 5
  4. 5
  5. 1

Explanation 

  1. maximum percentage of coffee = R
    • P = 300/1100 * 100 = 300/11 = 27.27%
    • Q = 250/1000 * 100 = 25 %
    • R = 450/1200 * 100 = 37.5 %
    • S = 250/1000 * 100 = 25%
    • T = 250/800 * 100 = 31.2%
  2. ratio of the number of students = 
    • Tea + Cola in S = 400 + 350 = 750
    • Coffee + Cola in T = 250 + 350 = 600
    • Ratio = 750/600 = 5 : 4
  3. ratio of number of students = 
    • Cola in P = 400
    • Total in P = 1100
    • Ratio = 400/1100 = 4/11
  4.  percentage of students 
    • who drink T = 400 + 350+ 250 + 400 + 200 = 1600
    • Total students = 1100 + 1000 + 1200 + 1000 + 800 = 5100
    • Percentage = 1600/5100 * 100 = 1600/51 = 31.37%
  5. total students who drinks cola =
    • 400 + 400 + 500 + 350 + 350 = 2000

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