LEARN TESTS

Tables

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In a table, data is arranged in vertical columns and horizontal rows. It is the simplest & most direct representation of data since all the numerical values are presented. However, interpreting and analyzing data from a table can get quite time - consuming.

Types of Tables

There are 2 kinds of tables.

  1. Simple tables - Presents only one characteristic of the
  2. Complex tables - Presents the division of data in 2 or more

Let's solve an example:

Study the following table and answer the questions given below.

Days

 Colleges

A

 B

 C

D

Monday

160

97

52

48

Tuesday

177

146

92

90

Wednesday

195

162

122

111

Thursday

216

161

152

158

Friday

230

183

182

188

Saturday

242

197

222

221

Requirement of Samosas by 4 colleges in Coimbatore.


1 ) 
In which college is the percentage increase in the requirement of samosas maximum over the given days?
       
a) College A     b) College C     c) College B     d) College D

Solution:

Percentage increase in requirement from Monday to Saturday=

 

 

Clearly, 173/48  is greater. Hence, option (d) is the answer.

2) In which day is the percentage of the total required minimum for college C?
   
a)Thursday   b) Friday    c) Wednesday     d) Saturday

Solution:

 

Clearly, 122/590 is lesser than other values. Hence option (c) is the answer.

3) In how many days was the requirement of samosas by college D less than its average requirement for the week?

a) One   b) Two   c)Three  d) Four

Solution:

Average requirement by college D = 1 /6 (48+ 90 + 111+ 158 + 188 + 221) = 136

Compare the average with individual values for college D. Requirements for 3 days, i.e., Monday, Tuesday & Wednesday are less than the average.

Hence, option (c) is correct.

4) By approximately what percent was the total requirement in all the 4 colleges on Wednesday less than that on Friday?

a) 16     b) 24     c) 29    d) 31

Solution:

 

 

Percentage difference is in between 25% and 20%.

Hence, option (b) is correct.

 


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