256 . 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
![]() |
![]() |
![]() |
Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018
More
257 . 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
![]() |
![]() |
![]() |
258 . 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%
![]() |
![]() |
![]() |
259 . 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
![]() |
![]() |
![]() |
Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018
More
260 . 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
![]() |
![]() |
![]() |
Bangladesh Bank - Assistant Director - 2012
More
261 . 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
![]() |
![]() |
![]() |
Bangladesh Bank - Assistant Director - 2013 ||
More
![]() |
![]() |
![]() |
সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||
More
![]() |
![]() |
![]() |
264 . If Mario was 32 years old 8 years ago, how old was he x years ago?
- A. x-40
- B. x-24
- C. 40-x
- D. 24-x
![]() |
![]() |
![]() |
সমন্বিত ৯ ব্যাংক | 07-01-2022 ||
More
265 . If number a is 22×31×50andbis21×31×51then1cmofa,bis:
- A. 2 2 × 3 1 × 5 1
- B. 2 2 × 3 2 × 5 2
- C. 2 3 × 3 1 × 5 0
- D. 2 2 × 3 2 × 5 0
![]() |
![]() |
![]() |
266 . If p = 3/5, q = 7/9 and r = 5/7, then
- A. p < q < r
- B. q < r < p
- C. p < r < q
- D. None of these
![]() |
![]() |
![]() |
267 . If prices fall 20%, what will be the price of an article which now costs Tk.20?
- A. Tk.18
- B. Tk.18
- C. Tk.25
- D. Tk.15
- E. None of these
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||
More
269 . If the co-ordinates of A and B are (4, 1) and (-2, 7) respectively, then the co-ordinates of the midpoint of AB are:
- A. (1, 4)
- B. (-3, 4)
- C. (3, -4)
- D. (-1, 4)
- E. None of these
![]() |
![]() |
![]() |
270 . If the co-ordinates of A and B are (x, y) and (x, -y) respectively, then the co-ordinates of the midpoint of AB are:
- A. (x, y)
- B. (0, y)
- C. (-x, -y)
- D. (0, 0)
- E. (x, 0)
![]() |
![]() |
![]() |