Question 1

The difference between the foodgrain productions of 2004 and 2008 is:

Accepted Answer

Differnce between the production of foodgrains during 2004 and 2008 = 35 - 30 =5 thousand tonnes.

Question 2

Percentage increase in the production of foodgrains in the year 2008 over the year 2007 is:

Accepted Answer

Percentage increase in food grain production = (30 - 15 )/15 x 100 = 100%

Question 3

Total food grain production in 2005 and 2007 is equal to the production during which of the following years?

Accepted Answer

Total production in 2005 and 2007 = 20 + 15 = 35 thousand tonnes. This total production is equal to the production in the year 2004.

Question 4

Rate of change in quantity of production in which of the following two consecutive years is at the minimum level?

Accepted Answer

Rate of change in the amount of production in the year 2004 over the year 2003 = (Production in 2004 - Production in 2003 ) x 100/ Production in 2003 Rate of change in the amount of production in the year 2004 over the year 2003 = (35 - 30) x 100 / 30 = 5 x 100 / 30 = 16.67% Similarly Rate of change in the amount of production in the year 2006 over the year 2005 = (25 - 20) x 100 / 20 = 5 x 100/20 = 25% Rate of change in the amount of production in the year 2007 over the year 2008 = (30 - 15) x 100 / 15 = 15 x 100/15= 100% Rate of change in the amount of production in the year 2006 over the year 2007 = (25 - 15) x 100 / 15 = 10 x 100/15= 66.67% Hence, it is clear that the rate of change in the amount of production during the consecutive years 2007 and 2008 is at the highest level.

Question 5

Mean of annual increase in sale from 2003 to 2008 (rupees in lakhs) is:

Accepted Answer

Mean of annual increase in sale from 2003 to 2008 = (Sale in 2008 - sale in 2003 )/ (Difference in years) Mean of annual increase in sale from 2003 to 2008 = 10.5 - 8.5/ 5 = 0.4

Question 6

Annual mean profit of the store (rupees in ten thousand) is approximately:

Accepted Answer

Annual mean profit of the store (rupees in ten thousands) = (6.5 + 11.5 + 7.5 + 4.5 + 9.5 + 11.5 + 10.0 + 8.5)/8 = 69.5/8 =8.7 (approx.)

Question 7

During which of the following years percentage of profit earned by the store on the total sale was at the highest level?

Accepted Answer

Percentage of profit on the total in 2001 = Total profit in rupees x 100/ total sale in rupees. Percentage of profit on the total in 2001 = 6.5 x 10000 x 100/3.5 x 100000 = 18.57 Percentage of profit on the total in 2002 = 11.5 x 10000 x 100/4.5 x 100000 = 25.56 Percentage of profit on the total in 2003 = 7.5 x 10000 x 100/8.5 x 100000 = 8.82 And Percentage of profit on the total in 2005 = 9.5 x 10000 x 100/ 8.5 x 100000 = 8.82 ∴ Percentage of profit on the total sale in 2002 was the highest level.

Question 8

Assuming the profit earned during the year 2001 as base (100), the profit made by the store during the year 2008 was:

Accepted Answer

Required profit = 100 x 85 /6.5 = 131

Question 9

During which year between 2001 to 2006 profit made by the store as compared to the previous year was more than 100%?

Accepted Answer

Profit per cent during the year 2005 as compared to the previous year =(95 - 45) x 100/4.5 = 111.11% Hence, profit in the year 2005 was more than 100% as compared to the previous year.

Question 10

During which of the following successive weeks number of persons killed was the highest?

Accepted Answer

According to the graph, the two successive weeks vis., 30 June - 7 July shows highest increase of 180 - 142 = 38 in the number of persons killed.

Question 11

During which of the following successive weeks number of persons killed came down to a minimum level?

Accepted Answer

According to the bar graph, two successive weeks, i.e. 7 July - 14 July shows maximum decline in the number of persons of killed in road accidents.

Question 12

In how many weeks number of persons killed was less than 150?

Accepted Answer

It is obvious from the bar graph that during the weeks beginning from 30 June. 14 July and 4 August, number of person killed remained less than 150.

Question 13

In how many weeks number of persons killed was more than 150?

Accepted Answer

According to the bar graph. number of person killed was more than 150 during the weeks beginning from 7 July, 21 July, 28 July and 11 August. Therefore number of such weeks = 4.

Question 14

If central govt. decides to extend financial assistance for prompt electrification and begins with the state having the least electrfied villages, then in the order of preference which of the following states will be fourth?

Accepted Answer

The order of preference of the least electrified villages is given as: D, E, B, F, A. C.

Question 15

According to the table given below which state of India has the highest percentage of electrified villages?

Accepted Answer

In the state (C) percentage of non-electrified villages is the least. It means the percentage of electrified villages for the state (C) is the highest.

Question 16

How many states have at last 60% or more electrified villages?

Accepted Answer

In A, C and F states, percentage of non-electrified villages are 25, 20 and 30 per cent respectively. Hence, percentages of electrified villages for these states are 75, 80 and 70 percent respectively.

Question 17

In which of the following states percentage of electrified villages is double the percentage of electrified villages in state (D)?

Accepted Answer

Percentage of electrified villages in state D = 100 - 60 = 40 Percentage of electrified villages in state C = 100 - 20 = 80 Hence, the percentage of electrified villages in the state C is double the percentage of electrified villages in state D.

Question 18

What is the precentage of electrified villages in the state (A)?

Accepted Answer

Percentage of electrified villages in the state A = 100 - 25 = 75%

Question 19

The area of the circle is 616 cm 2. What is the area of the rectangle?

Accepted Answer

given :- Area of the circle = 616 ⇒ πr2 = 616 Put the value of π = 22/7 in above equation. we will get, ⇒ r2 = 196 ⇒ r = 14 cm Length of the rectangle = Diameter of the circle = 2r Breadth of the rectangle = Radius of the circle = r ∴ Area of the rectangle = Length x Breadth ∴ Area of the rectangle = 28 × 14 = 392 cm2

Question 20

What is the average female population in million?

Accepted Answer

Bar graph Questions