1861 . If m men can do a job in 10 days, how many days will it take for 10 men to complete the job assuming that they work at the same rate?
  • A. m
  • B. 10/m
  • C. 100m
  • D. 10m
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1862 . If machine A polishes x units in 12 minutes and machine B polishes 5x units in 40 minutes, in how many minutes will A and B. working together, polish 50x units?
  • A. 240
  • B. 300
  • C. 350
  • D. 120
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সহকারী পরিচালক(AD) -12.11.2021
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1863 . If Mamun were twice as old as he is now, he would be 40 years older than Jamal. If Jamal is 10 years younger than Mamun, How old is Mamun?
  • A. 20
  • B. 30
  • C. 40
  • D. 50
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1864 . If Marie has twice as much money as Curie has, who has three times as much money as Sunny as has, what is the ratio of the amount of money Sunny has to the amount of money Marie has ?
  • A. 1 : 8
  • B. 1 : 6
  • C. 1 : 4
  • D. 1 : 2
  • E. 2 : 1
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Bangladesh Bank - Assistant Director - 2006
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1865 . If Masud can do a job in P days, while Minhaz can do the same job in Q days separately, how long will it take to finish the job if they work together?
  • A. (P+Q)/PQ days
  • B. PQ/(P+Q) days
  • C. (P+Q) days
  • D. (1/P + 1/Q) days
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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)
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1866 . If mx+ny=12my, then x/y+n/m= ?
  • A. 12
  • B. 12mn
  • C. 12m + 12y
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1867 . If n and p are both even number, which of the following number must be an odd number?
  • A. n +2p
  • B. np + 1
  • C. n + p
  • D. 2n + p
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1868 . If n and p are both odd numbers, which of the following must be an even number?
  • A. np + 2
  • B. n + p
  • C. n + p + 1
  • D. np
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Bangladesh Bank - Assistant Director - 2009
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1869 . If N and P are odd numbers then which of the following must be even number?
  • A. NP
  • B. 2N + P
  • C. N + P
  • D. NP + 2
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Sonali- Janata- Agrani &amp- Rupali Bank Ltd. Senior Officer Recruitment 14.03.2008
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1870 . If n is a positive integer and k+2=3n, which of the following could be a value of k?
  • A. 1
  • B. 4
  • C. 7
  • D. 25
  • E. none of them
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1871 . If n is a positive integer and n2 is divisible by 72, then what is the largest positive integer that must be a factor of n?
  • A. 6
  • B. 12
  • C. 24
  • D. 36
  • E. None of these
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1872 . If n is an even integer, which of the following must be an odd integer ?
  • A. 5n-2
  • B. 7(n+3)
  • C. n(n-1)^2
  • D. none of these
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1873 . If n is an even integer which of the following must be an odd integer?
  • A. 7n - 2
  • B. 5(n - 2)
  • C. (16n + 24)/8
  • D. (6n + 12)/3
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1874 . If n is an integer between 0 and 100, then any of the following could (3n+3) except ---
  • A. 300
  • B. 297
  • C. 208
  • D. 63
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1875 . If n is any negative number, which of the following must be positive?
  • A. n/2
  • B. 2n
  • C. n +2
  • D. n -2
  • E. 2 -n
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