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32.	860% of 50 + 50% of 860 =?
	A.  430
	B.  516
	C.  660
	D.  860

Solution

Given expression = [860 / 100 x 50 + 50 / 100 x 860] = 430 + 430 = 860.

33.	In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B?
	A.  30%
	B.  70%
	C.  80%
	D.  87.5%

Solution

Let number of students appeared from school A = 100. Then, number of students qualified from school A = 70. Number of students appeared from school B = 120. Number of students qualified from school B = [150 / 100 x 70] = 105. Required percentage = [105/ 120 x 100]% = 87.5%

34.	The current birth rate per thousand is 32, whereas corresponding death rate is 11 per thoudand. The net growth rate in terms of population increase in percent is given by
	A.  0.0021%
	B.  0.021%
	C.  2.1%
	D.  21%

Solution

Net growth on 1000 = (32 - 11) = 21. Net growth on 100 ‹=› [21 / 1000 x 100]% = 2.1%.