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1787 . If 1/3 + 1/2 + 1/x = 4, then x =?
- A. 18/5
- B. 19/6
- C. 24/11
- D. 6/19
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1788 . If 1/x > 1/y, then which of the following must be true?
- A. y > x
- B. x > y
- C. x < 0
- D. y < 0
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1789 . If 1/x>1/5 then ---
- A. x<5
- B. x>5
- D. x=0
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1790 . If 10% of r is 20% of s, 20% of s is 30% of t and 100% or r is x% of t, then x is--
- A. 300
- B. 33.33
- C. 66.66
- D. 40
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1791 . If 10 person shake their hands with each other , then total number of handshakes are --
- A. 100
- B. 20
- C. 50
- D. 45
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Bangladesh Bank - Assistant Director - 2015
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1794 . If 12a + 3b =1 and 7b-2a=9, what is the average of a and b?
- A. 0.1
- B. 0.5
- C. 1
- D. 2.5
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1795 . If 13 = 13w/(1 - w), then (2w)2 =
- A. 1/4
- B. 1/2
- C. 1
- D. 2
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1796 . If 13 =13w / ( 1 - w ), then ( 2w )2 =
- A. 1/4
- B. 1/2
- C. 1
- D. 2
- E. None of these
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Bangladesh Bank - Assistant Director - 2009
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1797 . If 14 farmers can plough a field in three hours, how long will it take 15 farmers to do the same job?
- A. 120 minutes
- B. 168 minutes
- C. 180 minutes
- D. 2.8 hours
- E. None of these
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1798 . If 15% of 40 is greater than 25% of a number by 2, then the number is :
- A. 12
- B. 16
- C. 24
- D. 32
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