Question : The table given below shows the GDP of two countries in different five years.
$K_1$ = The value of the average GDP of country A in all 5 years. $K_2$ = The value of average GDP of country B in all 5 years. What is the value of ($K_1 + K_2$)?
Option 1: 316
Option 2: 290
Option 3: 308
Option 4: 178
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Correct Answer: 308
Solution : Sum of GDP of country A in all the 5 years = 175 + 200 + 150 + 75 + 50 = 650 Average of GDP of country A in all the 5 years, $K_1$ = $\frac{650}{5}$ = 130 Sum of GDP of country B in all the 5 years = 285 + 300 + 125 + 85 + 95 = 890 Average of GDP of country B in all the 5 years = $\frac{890}{5}$ = 178 $\therefore K_2$ = 178 So, ($K_1+ K_2$) = 130 + 178 = 308 Hence, the correct answer is 308.
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Question : The table given below shows the foreign trade by two countries in 5 different years.
What is the value of average foreign trade by country P in all 5 years?
Option 1: 155
Option 2: 745
Option 3: 149
Option 4: 135
What is the total foreign trade by country M in all the 5 years?
Option 1: 1010
Option 2: 1215
Option 3: 505
Option 4: 1005
Question : The following table shows the number of children in each house of a society.
What is the average number of children per house?
Option 1: 1.65
Option 2: 1.4
Option 3: 1.9
Option 4: 1.15
Question : The table given below shows the number of people in different states.
What is the average number of people in all the states?
Option 1: 396.5
Option 2: 482.5
Option 3: 498.6
Option 4: 476.6
Question : Calculate the mean from the following table.
Option 1: 34.2
Option 2: 33.4
Option 3: 32.6
Option 4: 35.8
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