Basic Numeracy/Quantitative Aptitude

398. The area A of a trapezoid is given by the formula A = 0.5(b + B)h, where b and B are the sizes of the bases and h the size of the height of the trapezoid. Express B in terms of A, b and h.

	(a) 0.5Ah - b
	(b) 2A/h - b
	(c) (2A - b)/h
	(d) 2A/h + b

399. Tom, Linda and Alex have $120 dollars. Alex has the third of what Tom has and Linda has twice as much as Alex. How much money, in dollars, does Linda have?

	(a) 10
	(b) 20
	(c) 40
	(d) 60

400. Which of the following is equivalent to 6x2 - 11x - 2?

	(a) (6x - 1)(x + 2)
	(b) (3x - 1)(2x + 2)
	(c) (3x + 1)(2x - 2)
	(d) (6x + 1)(x - 2)

401. During the same journey, Stuart drove x miles for 2 hours, and 200 miles for 3 hours. Find x if the average speed for the entire journey is 70 miles per hour.

	(a) 166
	(b) 167
	(c) 150
	(d) 140

402. Given the equations of the lines
(I) 2y + 3x = 3
(II) -3y - 2x = 5
(III) -6y + 4x = 9,
(IV) 2y + 6x = 9
which two lines are perpendicular?

	(a) (I) and (II)
	(b) (II) and (III)
	(c) (III) and (IV)
	(d) (I) and (III)

TOTAL

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