3226 . The value of a machine is Tk.6250. Its value decreases by 10% during the first year, 20% during the second year and 30% during the third year. What will be the value of the machine after 3 years?
  • A. 2650
  • B. 3050
  • C. 3150
  • D. 3750
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3227 . the value of k,if(x-1) is a factor of 4X6^3+3X^2-4X+k, is-
  • A. 1
  • B. 2
  • C. -3
  • D. 3
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3228 . The value of machine depreciates every four year at the rate of 10% on its value at the begining of that year if the present value of the machine is Tk.729 its worth 3 years ago was.
  • A. 1000
  • B. 750.87
  • C. 947.10
  • D. 800
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3229 . The velocity of a boat rowed downstream is three times that of the same boat rowed upstream. If the speed of the stream is 2.5 miles per hour what is the speed of rowing in miles/hr?
  • A. 5
  • B. 3
  • C. 2
  • D. 6
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3230 . The volume of a rectangular solid is to be increased by 50% without altering its base. To what extent the height of the solid must be changed.
  • A. 50%
  • B. 40%
  • C. 30%
  • D. 20%
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3231 . The water in a fish tank measuring 5/4 feet by 8 inches is 7 inches high. The water is poured into another tank measurinig 14 inches by 20 inches. What will be the height of water, in inches in the secont tank?
  • A. 1/4
  • B. 2
  • C. 3
  • D. 1/12
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3232 . The width of a rectangle is 20 cm. the diagonal is 8 cm more than the length. Find the length of the rectangle.
  • A. 20
  • B. 23
  • C. 22
  • D. 21
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3233 . The width of a rectangular field is 1/3 times its length. What is the area of the field if the length of the field is 120 yards?
  • A. 480 square yards
  • B. 5,000 square yards
  • C. 2,400 square yards
  • D. 4,800 square yards
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3234 . The width of a rectangular fields is 1/3 rd its length. What is the area of the field in square yards if its length is 120 yeards?
  • A. 480
  • B. 5000
  • C. 2400
  • D. 4800
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3235 . There are 120 engineers and technicians working in a project. If the ratio of engineers to technicians in 3 to 5, how many technicians are working in the project?
  • A. 45
  • B. 60
  • C. 75
  • D. none of these
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3236 . There are 120 engineers and technocians working in a project in a project. If the ratio of enginerrs to technicians is 3 to 5, how many technicians are working in the project?
  • A. 45
  • B. 60
  • C. 75
  • D. 90
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3237 . There are 15 boys and 10 girls in a class. If three students are selected at random, what is the probability that 1 girl and 2 boys are selected?
  • A. 1/40
  • B. 1/2
  • C. 21/46
  • D. 7/41
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3238 . There are 18 bananas on a tree. If one munkey eats 1/3 of the bananas and another monkey eats 1/3 of the rest, how many bananas are still on the tree?
  • A. 8
  • B. 6
  • C. 4
  • D. 16
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3239 . There are 20 members on a football squad. In electing a captain and a co-captain, how many different outcomes of the election is possible ?
  • A. 760
  • B. 380
  • C. 190
  • D. None of these
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3240 . There are 200 questions on a 3-hour examination . Among these questions 50 are mathematics problems. It is suggested that twice as much time be spent on each math problem as for each other question. How many minutes should be spent on mathematics problem
  • A. 32
  • B. 72
  • C. 60
  • D. 100
  • E. None of these
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