What is the average candidates who appeared from State Q during the given years?

Required percentage	= (720 + 840 + 780 + 950 + 870) x 100 % (980 + 1050 + 1020 + 1240 + 940)
	= 4160 x 100 % 5230
	= 79.54% 80%.

Central angle of 108° =	❨	108	x 100	❩	% of the total expenditure
		360

= 30% of the total expenditure.

From the pie chart it is clear that:

Binding Cost + Transportation Cost	= (20% + 10%) of the total expenditure
	= 30% of the total expenditure.

∴ Binding Cost and Transportation Cost together have a central angle of 108°.

Let the Promotion Cost for this edition be Rs. p.

Then, 25 : 10 = 56250 : p     ⟹     p = Rs.	❨	56250 x 10	❩	= Rs. 22,500.
		25

Clearly, S.P. of the book = 105% of C.P.

Let the selling price of this edition (of 12500 books) be Rs. x.

Then, 15 : 105 = 281250 : x     ⟹     x = Rs.	❨	105 x 281250	❩	= Rs. 1968750.
		15

∴ S.P. of one book = Rs.	❨	1968750	❩	= Rs. 157.50 .
		12500

Central angle of 18° =	❨	18	x 100	❩	% of the total expenditure
		360

= 5% of the total expenditure.

From the given chart it is clear that:

Out of the given combinations, only in combination (d) the difference is 5% i.e.

Paper Cost - Printing Cost	= (25% - 20%) of the total expenditure
	= 5% of the total expenditure.

The percentages of candidates qualified to candidates appeared from State P during different years are:

For 1997	❨	780	x 100	❩	% = 12.19%.
		6400

For 1998	❨	1020	x 100	❩	% = 11.59%.
		8800

For 1999	❨	890	x 100	❩	% = 11.41%.
		7800

For 2000	❨	1010	x 100	❩	% = 11.54%.
		8750

For 2001	❨	1250	x 100	❩	% = 12.82%.
		9750

∴ Maximum percentage is for the year 2001.

Required percentage	= (840 + 1050 + 920 + 980 + 1020) x 100 % (7500 + 9200 + 8450 + 9200 + 8800)
	= 4810 x 100 % 43150
	= 11.15%

Required percentage	= (850 + 920 + 890 + 980 + 1350) x 100 % (7400 + 8450 + 7800 + 8700 + 9800)
	= 4990 x 100 % 42150
	= 11.84%.

Required percentage	= (1020 + 1240) x 100 % (8800 + 9500)
	= 2260 x 100 % 18300
	= 12.35%.

The average number of candidates selected over the given period for various states are:

For Delhi =	94 + 48 + 82 + 90 + 70	=	384	= 76.8.
	5		5

For H.P. =	82 + 65 + 70 + 86 + 75	=	378	= 75.6.
	5		5

For U.P. =	78 + 85 + 48 + 70 + 80	=	361	= 72.2.
	5		5

For Punjab =	85 + 70 + 65 + 84 + 60	=	364	= 72.8.
	5		5

For Haryana =	75 + 75 + 55 + 60 + 75	=	340	= 68.
	5		5

Clearly, this average is maximum for Delhi.