1846 . If a and b are positive integers and (a - b)/3.5 = 4/7, then--
  • A. b < a
  • B. b > a
  • C. b = a
  • D. b ≥ a
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1847 . If a and b are positive integers and a-b/3.5 = 4/7 , then
  • A. b < a
  • B. b > a
  • C. b = a
  • D. b > a
  • E. None of these
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1848 . If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
  • A. 60
  • B. 45
  • C. 40
  • D. 30
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1849 . If a bookstore owner buys 15 books less for Tk. 900 when the price of each book goes up by Tk. 3, then find the original price of a book.
  • A. Tk.20
  • B. Tk. 18
  • C. Tk. 15
  • D. Tk. 12
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1850 . If a building "b' feet high casts a shadow 'f' feet long , then , at the same time of day, a tree 't' feet high will cast will cast a shadow how many feet long?
  • A. (ft)/b
  • B. (fb)/t
  • C. b/(ft)
  • D. (fb)/f
  • E. None of these
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1851 . If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work in 4 days,how much will A get if both work together and are paid tk.180 in all?
  • A. tk60
  • B. tk120
  • C. tk90
  • D. tk180
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1852 . If a car can drive 25 km on two litters of octen, how many litters will be needed for a trip of 150 km?
  • A. 12
  • B. 3
  • C. 6
  • D. 7
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1853 . If a car travels 20 meters in a second, what is it speed ( in kilometer ) per hour ?
  • A. 44
  • B. 66
  • C. 88
  • D. None of these
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1854 . If a carton containing a dozen mirrors is dropped. which of the following cannot be the ratio of broken mirrors to unbroken mirrors?
  • A. 2 : 1
  • B. 3 : 1
  • C. 3 : 2
  • D. 7 : 5
  • E. None of these
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1855 . If a certain integer x is devided by 4, the remainder is 3, then all of the folowing could be an integer except--
  • A. x/11
  • B. x/23
  • C. x/8
  • D. All of above
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1856 . If a certain integer x is divided by 4, the remainder is 3, then all of the following could be an integer except ----
  • A. x/11
  • B. x/23
  • C. x/8
  • D. none of these
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1857 . If a commission of 10% is given on the marked price of a book, the publisher gains 20%. If the commission is increased to 15% the gain is--
  • A. 91/6%
  • B. 14%
  • C. 50/3%
  • D. 40/3%
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1858 . If a deposit that has been paid toward the purches of a certain product is Tk.110, how much more remains to be paid?
  • A. 880
  • B. 990
  • C. 1000
  • D. 1100
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1859 . If a doctor gives you 3 pills and tells you to take one pill 2 every half an hour, how long would it be before all the pills had been taken.
  • A. 1 hour
  • B. 1.5 hour
  • C. 2 hour
  • D. 2.5 hour
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1860 . If A has 4 elements and B has 8 elements then the minimum and maximum number of elements in A∪B are respectively __
  • A. 4,8
  • B. 8,12
  • C. 4,12
  • D. 6,12
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