241 . If a cube has a length of 8 cm , what is its total surface area?
- A. 64
- B. 96
- C. 384
- D. 256
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Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018
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243 . If a:b=4 and b:c=5 than a:b:c=?
- A. 8: 15: 12
- B. 20: 35: 42
- C. 20: 35: 24
- D. None
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বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022
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Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018
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245 . If b + a = x and a - b = y, then a2 - b2 =
- A. (x2 - y2)/2
- B. (x2 - y)/2
- C. 2xy
- D. xy/2
- E. xy
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246 . If both length and width of a rectangular plot for a garden are increased by 20%, how many percent of the plot would be increased?
- A. 20
- B. 24
- C. 36
- D. 40
- E. None of these
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247 . If both x and y are integers and x = 24y + 12, then which of the following must be true?
- A. x/12 is even
- B. x/6 is even
- C. (x + 4)/8 is odd
- D. (x + 4)/8 is even
- E. None of these
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248 . If determinant of a matrix A is Zero than :
- A. A is a Singular matrix
- B. A is a non - Singular Matrix
- C. First and last rows of the matrix must be same
- D. First and last columns of the matrix must be same
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Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018
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249 . If each angle of a regular polygon is 162°, how many sides does it have?
- A. 12
- B. 10
- C. 8
- D. 16
- E. 20
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250 . If each side of a rectangle is increased by 20% , the increase in the area of a rectangle will be______
- A. 50%
- B. 35%
- C. 40%
- D. 44%
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251 . If for a square matrix A , A2=A then such a matrix is known as :
- A. Idempotent matrix
- B. Orthagonal matrix
- C. Null matrix
- D. Identity matrix
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Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018
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252 . If for integer x, 5 < x < 10 and y = x + 5. What is the greatest possible value of x + y ?
- A. 32
- B. 22
- C. 23
- D. 27
- E. None of them
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Bangladesh Bank - Assistant Director - 2012
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253 . If in 2000 there were 61,000 people living per square mile in Mirpur, what is the approximate area of Mirpur ?
- A. 15 sq miles
- B. 18 sq miles
- C. 21 sq miles
- D. 30 sq miles
- E. 36 sq miles
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Bangladesh Bank - Assistant Director - 2013 ||
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সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||
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