Question : The table given below shows the income and expenditure of five companies.
What is the difference between average income and average expenditure of all the companies?
Option 1: 4.2
Option 2: 6.6
Option 3: 2.6
Option 4: 8.4
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Correct Answer: 6.6
Solution : We know the formula, Average = $\frac{\text{Sum of all values}}{\text{The total of all values}}$ The average income of all the companies = $\frac{55+50+35+40+60}{5}=\frac{240}{5}$ The average expenditure of all the companies = $\frac{50+40+32+35+50}{5}=\frac{207}{5}$ The difference between the average income and average expenditure of all the companies $=\frac{240}{5}-\frac{207}{5}=\frac{33}{5}=6.6$ Hence, the correct answer is 6.6.
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Question : The table given below shows the production of television and fridges by different companies.
J1 = The value of average production of fridges by D and E. J2 = The total production of television and fridges by all companies. What is the value of (J2 – J1)?
Option 1: 456.2
Option 2: 314.5
Option 3: 465
Option 4: 422.5
Question : The table shows the number of candidates recruited by four companies A, B, C and D over the years.
Find the ratio of the number of candidates recruited by Company B in 2019 to the number of candidates recruited by Company D in 2020.
Option 1: 15 : 13
Option 2: 13 : 12
Option 3: 15 : 11
Option 4: 12 : 11
Question : The table given below shows the production of tea by two companies A and B in 6 years.
What is the sum of the average production of tea by B in years Y1 and Y2 and the average production of tea by A in years Y3 and Y4?
Option 1: 136.5
Option 2: 132.5
Option 3: 142.5
Option 4: 149.5
Question : The table given below shows the number of students in 6 different schools.
The number of students in school A is what percentage of the number of students in school F?
Option 1: 41.66%
Option 2: 200%
Option 3: 240%
Option 4: 120%
Question : The table given below shows the cost price and selling price of 5 different articles.
What is the ratio of the total cost price to the total selling price of all articles?
Option 1: 50 : 39
Option 2: 49 : 72
Option 3: 37 : 50
Option 4: 50 : 73
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