IB Mathematics SL Prep - Question List

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41. A target consists of three concentric circles with radii of 1 ft, 2 ft, and 3 ft. If the probability of an arrow hitting the target at any point is equal, what is the probability that an arrow will hit the target in the outermost region of the circle?
  1. 1/3
  2. 5?
  3. 55.6%
  4. None of the above.
42. Brian is opening a small sporting goods store. After considering her market, she sets her initial sales goal at $32,000 a month. He knows that the rent for his store should be about 8% of sales. Approximately what should he plan to pay for rent, based on the sales figure given?
  1. $2,400
  2. $2,560
  3. $3,200
  4. $3,260
  5. $3,305
43. Sawyer’s Pet Store has averaged a net profit of $2,500 for the past 11 weeks. What is the total net profit over this length of time?
  1. $26,000
  2. $27,500
  3. $27,900
  4. $28,000
  5. $29,300
44. A point is reflected first over the line y = x, then over the x-axis, then over the y-axis. The resulting point has the coordinates (73, 14). The coordinates of the original point were which of the following?
  1. (-14, -73)
  2. (-73, 14)
  3. (73, -14)
  4. (73, 14)
45. A department store sells sweaters for $90. During a promotion, the sweaters are marked down 15%. What is the sale price of the sweaters?
  1. $75.00
  2. $76.50
  3. $77.67
  4. $78.14
  5. $76.02

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