Basic Numeracy/Quantitative Aptitude

99. Factor the trinomial b^2 + 6b - 16

	(a) (b + 4)(b - 4)
	(b) (b + 8)(b - 2)
	(c) (b - 8)(b + 2)
	(d) (b + 16)(b - 1)

100. Completely factor 4b^2 + 16b + 16

	(a) (4b + 8)(b + 2)
	(b) 4(b + 2)^2
	(c) (2b + 4)^2
	(d) none of these

101. What is the probability for a family with three children to have a boy and two girls (assuming the probability of having a boy or a girl is equal)?

	(a) 1/8
	(b) 1/4
	(c) 1/2
	(d) 3/8

102. In how many ways can you sit 8 people on a bench if 3 of them must sit together?

	(a) 720
	(b) 2160
	(c) 2400
	(d) 4320

103. In how many ways can you sit 7 people on a bench if one person won’t sit on the middle seat or on either end?

	(a) 720
	(b) 1720
	(c) 2880
	(d) 5040

104. In a jar there are 15 white balls, 25 red balls, 10 blue balls and 20 green balls. How many balls must be taken out in order to make sure we took out 8 of the same color?

	(a) 8
	(b) 23
	(c) 29
	(d) 32

105. In a jar there are 21 white balls, 24 green balls and 32 blue balls. How many balls must be taken out in order to make sure we have 23 balls of the same color?

	(a) 23
	(b) 46
	(c) 57
	(d) 66

TOTAL

Detailed Solution

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