571 . 125 gallons of a mixture contains 20% water . What amount of additional water should be added such that the water content is raised to 25%?
  • A. 15/2 gallons
  • B. 17/2 gallons
  • C. 19/2 gallons
  • D. 19/2 gallons
  • E. 8 13 gallons
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572 . 15% monthly salary increase resulted in a Tk.14400 per year increase in salary for an employee. What was his monthly salary before the increase?
  • A. Tk.8000
  • B. Tk.9000
  • C. Tk.5000
  • D. Tk.12000
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573 . 15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take , if 3 women do as much work as 2 men ?
  • A. 18
  • B. 20
  • C. 25
  • D. 30
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Bangladesh Bank - Assistant Director - 2016
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574 . 169 is equal to
  • A. 11
  • B. 13
  • C. 15
  • D. 17
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৩৪ তম বিসিএস প্রিলিমিনারি টেস্ট (24-05-2013)
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575 . 17th June was Sunday. What day of the week was on 10th November of the same year?
  • A. Sunday
  • B. Saturday
  • C. Friday
  • D. None of these
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One Bank Ltd || Special Cadre Officer (03-01-2025) || 2025
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576 . 18 pumps can raise 2170 tonnes of water in 10 days, working 7 hours a day; in how many days will 16 pumps raise 1736 tonnes of water, working 9 hours a day?
  • A. 6
  • B. 7
  • C. 8
  • D. 9
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Bangladesh Bank - Assistant Director - 2014
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577 . 1f 9 is 34 of n, what number is 56 of n?

  • A. 12
  • B. 15
  • C. 10
  • D. 12.5
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জনতা ব্যাংক || অফিসার (আরসি) (28-06-2024) || 2024
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578 . 2% of 2=?
  • A. 0.0004
  • B. 0.4
  • C. 0.02
  • D. 0.04
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579 . 2, 5, 9, 19, 37, ?
  • A. 75
  • B. 76
  • C. 78
  • D. 73
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Bangladesh Bank - Officer(Cash) - 2016
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580 . 2, 9, 6, 7, 18, 5, ....
  • A. 25
  • B. 40
  • C. 54
  • D. 90
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581 . 2 bats and 2 balls cost Tk.300. 5 bats and 5 balls cost Tk.750. 3 bats and 3 balls cost--
  • A. Tk.400
  • B. Tk.450
  • C. Tk.500
  • D. Tk.550
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582 . 2 cars leave a office at 12 noon, with one car traveling south at 60 mph and the other north at 40 mph along a straight road. At what time will they be 50 miles apart?
  • A. 2:30
  • B. 12:30
  • C. 3:30
  • D. 1:30
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583 . 2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
  • A. 2 hours
  • B. 2.5 hours
  • C. 3 hours
  • D. 3.5 hours
  • E. None of these
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584 . 2-[ 2 - { 2 - 2 ( 2 +2 ) } ] = ?
  • A. -4
  • B. 6
  • C. 4
  • D. None of these
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পরিবারকল্যাণ পরিদর্শিকা প্রশিক্ষণার্থী-৫.১১.২০১০
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585 . 2-[2-{-2-2(2+2)}]=?
  • A. 6
  • B. -4
  • C. 4
  • D. None of these
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