Exercise

Direction (Q. 1 - 5) : Study the following graph carefully and answer the questions that follow :

Income and Expenditure of Company 'X' during the period 2002 to 2007 Profit/Loss = Income - Expenditure % Profit/Loss

= Income - Expenditure/Expenditure x 100

What is the average profit earned (in crore Rs.) in the given years ?

Profit earned in 2002 = 350 - 250 = Rs. 100 cr.

in 2003 = 450 - 300 = Rs. 150 cr.

in 2004 = 450 - 400 = Rs. 50 cr.

in 2005 = 500 - 350 = Rs. 150 cr.

in 2006 = 400 - 450 = Rs. -50 cr.

in 2007 = 550 - 450 = Rs. 100 cr.

∴ Required average

= 100+150+50+150-50+100/6

= Rs. 83 1/3 crore.

What approximately is the percent profit earned during the year 1999 ?

Percentage profit in 2005 = 500 - 350/350 x 100

= 150/350 x 100 = 42.85 = 43%

Which of the following years has the maximum per cent increase/ decrease in income from the previous year ?

In 2003, % increase in income

= 450 - 350/350 x 100 = 10000/350 = 28.6%

In 2005, % increase in income

= 500 - 450/450 x 100 = 11 1/9%

In 2006, % decrease in income

= 500 - 400/500 x 100 = 20%

In 2007, increase

= 550 - 400/400 x 100 = 37.5%

Percentage increase in 2001 was maximum.

What is the percentage increase in expenditure from 1997 to 1998 ?

Percentage increase in expenditure from 2003 to 2004

= 400 - 300/300 x 100 = 33 1/3%

What is the average income (in crore Rs.) for the given years ?

Average income

= 350+450+450+500+400+550/6

= 2700/6 = Rs. 450 crore

Direction (Q. 6 - 10) : Study the following table carefully to answer these questions.

Distribution of marks obtained by 160 students in each of the three Subjects — Hindi. English and Maths out of lOO.

If the criteria for passing is minimum 40% marks only in Maths, how many students will pass ?

No. of sucessful students = 34 + 45 + 28 = 107

If for passing, the student has to obtain minimum 60% marks on average of three subjects, how many students will pass ?

Required answer = 35 + 5 = 40

If for passing, a student has to, obtain 40% marks in any one of the three subjects, what is the minimum number of students who will definitely pass ?

No Explanation

How many students will pass in English if minimum passing ! marks are 40% ?

Required answer = 65 + 42 + 2 = 109

How many students have obtained 20 or more marks in at least one of the three subjects ?