796 . A committee of 5 members is to be formed out of 3 trainees, 4 professors and 6 research associates. In how many different ways can this be done if the committee should have 2 trainees and 2 research associates?
  • A. 9
  • B. 15
  • C. 45
  • D. 60
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797 . A company increases every year salary of an officer by 20%. His salary in the year was Tk.26640. What was his salary in 1999?
  • A. Tk.20000
  • B. Tk.19028
  • C. Tk.18500
  • D. Tk.18840
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798 . A company makes a profit of 5% in its first TK. 1000 of sales each day , and 4% on all sales in excess of TK. 1000 for that day . What would be the profit of the company in day when sales are TK. 6000 ?
  • A. 200
  • B. 225
  • C. 250
  • D. 255
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799 . A Company makes a profit of 6% on its first Tk. 10,000 of sales day and 5% on all sales in excess of Tk. 10,000 for that day. How much taka in profit will the company make in a day when sales are Tk 6,0000?
  • A. 2500
  • B. 3000
  • C. 3100
  • D. none of these
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800 . A company makes a profit of 7% selling goods which cost Tk.2000; it also makes a profit of 6% selling a machine that cost the company Tk.5000. How much total profit did the company make on both transactions?
  • A. Tk.300
  • B. Tk.400
  • C. Tk.420
  • D. Tk.440
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801 . A computer can perform 30 identical tasks in 6 hour. At that rate, what is the minimum number of computers that should be assigned to complete 80 of the tasks within 3 hours?
  • A. 12
  • B. 7
  • C. 6
  • D. 16
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802 . A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixtore that is 3 parts alcohol to 5 parts water by volume ?
  • A. 4/3
  • B. 5/3
  • C. 7/3
  • D. 8/3
  • E. None
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803 . A contractor employs 60 person for doing a job in 80 days. After 20 days it was found that only one-fifth of work was finished.How many more persons are to be employed to finish the job as per schedule?
  • A. 20
  • B. 80
  • C. 60
  • D. 40
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804 . A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him till the last match was-
  • A. 64
  • B. 72
  • C. 80
  • D. 85
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805 . A culprit was spotted by a policeman from a distance of 250 meter. When the policeman started running towards the culprit at a speed of 10 km/h, the culprit also fled. If his speed was 8 km/h, find how far the culprit had run before he was overpowered.
  • A. 1km
  • B. 1.5 km
  • C. 2 km
  • D. 0.8 km
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806 . A cyclist travels x miles in w hours and z minutes. What is the cyclist's speed in miles per hours and z minutes. What is the cyclist's speed in miles per hour?
  • A. (60w+z)/x
  • B. 60x/(w+z)
  • C. w+z/x
  • D. 60x/(60w+z)
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807 . A cyclist trayels at 12 miles per hour. How many minutes will it take to travel 30 miles?
  • A. 2
  • B. 2.5
  • C. 120
  • D. 150
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808 . A cylindrical jar that can hold 1.5 lilers of water is 7/10 th full. Approximately how much water in liters should be poured out of the jar sothat it becomes 7/10 th empty?
  • A. 0.75
  • B. 0.6
  • C. 0.5
  • D. 0.4
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809 . A cylindrical rod of iron, whose height is equal to its radius, is melted and cast into spherical balls whose radius is half the radius of the rod. find the number of balls.
  • A. 3
  • B. 4
  • C. 5
  • D. 6
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810 . A dealer had 24 mobile phones. He sold some of them at a profit of Tk.950 each and he sold the rest at a loss of Tk.500 each. If his total profit was Tk.9750, how many phones did he sell at a loss?
  • A. 6
  • B. 10
  • C. 15
  • D. 9
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