Line Graph Quiz 1

Answer : A

In 2003, Student 1 = 75

Student 2 = 85

Required % = 75/85 * 100 = 88.2

Answer: B

Average marks of student 1 = (85 + 80 + 60 + 75 + 85 + 90 + 80)/7 = 79.2

Average marks of student 2 = (70 + 66.5 + 90 + 85 + 75+ 77 + 78)/7 = 77.3

Ratio = 79.2 : 77.3

 

Answer: D

Quicker Method: Since the number of subjects are the same, the total marks would be higher in the year whose average marks is the highest. Hence, 2000

Answer: B

Student 1’s total marks in 1st and last year = 85 + 80 = 165

Student 2’s difference in marks in 2st and last year = 78 - 70 = 8

Ratio = 165 : 8

Answer: A

Quicker Method: Since the number of subjects are the same, the total marks would be minimum in the year whose average marks is the lowest. Hence, 2004

Answer Option: D

Going by options: For 2007 & 2008, the total expenditure = 450 + 400 = 850 thousand.

For 2007 & 2009 the total expenditure = 450 + 350 = 800 thousand.

For 2008 & 2009 the total expenditure = 400 + 350 = 750 thousand.

Income in 2010 = 400 thousand. None of the options satisfies.

Answer Option: C

Income in 2007 = 300 cr. Income in 2008 = 250 cr.% Decrease = 300 - 250 / 300 x 100 = 16.66%

Answer Option: B

The average comes out to be around Rs 410. There are 3 years having expenditure more than the average expenditure.

Answer: D

For 2007, % of expenditure to Income = 450 / 300 = 1.5

For 2008, % of expenditure to Income = 400 / 250 = 1.6

For 2009, % of expenditure to Income = 350 / 200 = 1.75

For 2010, % of expenditure to Income = 450 / 400 = 1.125

Obviously it is lowest for 2010.

Answer: D

Expenditure in 2009 = 350 cr.

Expenditure in 2010 = 450 cr.

%increase = 450 - 350 / 350 x 100 =28.57%

None of the options satisfies.