226 . Average weight of 8 persons is 120 lb. One person leaves the group and a new person comes in and the new average is 122 lb. If the weight of the outgoing person is 110 lb, then what is the weight of the incoming person?
  • A. 126
  • B. 122
  • C. 118
  • D. 120
  • E. None of them
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227 . a² + 3ab = 145, If a = 5, then what is the value of b²?
  • A. 8
  • B. 64
  • C. 16
  • D. 4
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228 . Babu's income is Tk.1000 more than that of Selim. Their total salary is Tk.x. What is Selim's salary?
  • A. x/2 - 500
  • B. (x + 1000)/2
  • C. (2x - 500)/2
  • D. 2x - 1000
  • E. None of these
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229 . Babu hired a labor to clean his garden for Tk.35.50. He was very happy with the cleaning and paid the labor bonus in addition to the original agreed Tk.35.50. If the bonus was more than 10 percent but less than 15 percent of the contract amount, then the total amount paid must have been between Tk.
  • A. 40 & 42
  • B. 39 & 41
  • C. 38 & 40
  • D. 37 & 39
  • E. None of these
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230 . Bank X pays a simple interest of TaKa 80 on principal o taka 1,000 annually . Bank y pays a simple interest of TaKa 140 on a principal of Taka 1000 annually . What is the ratio of the interest rates of Bank x to Bank y ?
  • A. 4:7
  • B. 6:8
  • C. 9:18
  • D. 2:7
  • E. None of them
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231 . Based on the information below, how much did a certain telephone call cost? 1. The call lasted 1 minute 27 seconds. 2. The cost for the first 30 second unit Tk.1.80, call duration more than 30 seconds cost Tk.0.90 per 30 second unit. 3. Any call duration less then 30 seconds is rounded up to the nearest 30-second unit.
  • A. Tk.1.80
  • B. Tk.2.61
  • C. Tk.2.70
  • D. Tk.3.51
  • E. Tk.3.60
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232 . By selling 32 guavas for Tk. 30 at the rate of Tk. 1.066 per guava a man loss 25% . How many guavas should be sold for tk. 18 to gain 20% of profit in the transaction?
  • A. 24
  • B. 12
  • C. 18
  • D. 36
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233 . By selling a book for TK. 56, gain is as much percent as it costs in taka. The cost price is :
  • A. TK. 280
  • B. TK. 40
  • C. TK. 360
  • D. TK. 140
  • E. TK. 500
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Bangladesh Bank - Assistant Director - 2011
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234 . By selling an item, the producer, the wholesaler and the retailer all make profits at 20%. If the itewm sells for Tk.21.60 by the retailer, find the production cost of the item.
  • A. Tk.15.00
  • B. Tk.12.50
  • C. Tk.12.75
  • D. Tk.15.50
  • E. Tk.18.00
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235 . Choose the pair of numbers which comes next : 75, 65, 85, 55, 45, 85, 35, .......?
  • A. 25, 15
  • B. 25, 85
  • C. 35, 25
  • D. 35, 85
  • E. 15, 85
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Bangladesh Bank - Assistant Director - 2011
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236 . Committee X has 4 members, committees Y has 5 members, and these committees have no members in common. If a task force is to be formed consisting of one member of X and one member of Y, how many different task forces are possible?
  • A. 6
  • B. 9
  • C. 10
  • D. 20
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237 . Company C produces toy trucks at a cost of Tk. 5.00 each for the first 100 trucks and Tk. 3.50 for each additional truck. If 500 toy trucks were produced by company C and sold for Tk. 10.00 each, what was company C's gross profit?
  • A. Tk. 2.250
  • B. Tk. 2500
  • C. Tk. 3100
  • D. Tk. 3250
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238 . Consider the following recursive function fun (s , y). what is the value of fun ( 4, 3) int fun ( int x , int y) if ( x =0) return y; return fun ( x,1, x+y); |
  • A. 9
  • B. 10
  • C. 12
  • D. 13
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Sonali &amp-Janata Bank | Officer (IT)| 04.01.2019
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239 . Difference between two numbers is 2 and their sum is 4. Then what is the difference of their square ?
  • A. 7
  • B. 8
  • C. 6
  • D. 5
  • E. None of them
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Bangladesh Bank - Assistant Director - 2012
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240 . Domain of a function is :
  • A. the maximal set of numbers for which a function is defined
  • B. the maximal set of numbers which a function can take values
  • C. it is the set of natural numbers for which a function is defined
  • D. any set of positive numbers
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