3121 . The difference of two numbers is 20% of the large number. If the smaller number is 20 then the largest number is-

A. 25
B. 65
C. 40
D. 60

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Answer: Option A

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সমন্বিত ৪ ব্যাংক - সহকারী প্রোগ্রামার - 25.09.2020

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3122 . The difference of two numbers is 20% of the larger number. If the smaller number is 12 the larger one is :

A. 16
B. 15
C. 18
D. 20

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Answer: Option B

Explanation:

Hints: Let the larger number be x

smaller number be y

Now, as given , x - y = 20% of x

and y = 20

x - 12 = 0.2x

o.8x = 12

x = 15

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3123 . The dimensions of a box are 2,3 and 4 meters . the cost of painting the outer sides of the box at the rate of tk. 3 per square meter is ___

A. tk. 156
B. tk. 120
C. tk. 136
D. tk. 160

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Answer: Option A

Explanation:

Area = 2(ab + bc + ca) = 2((2*3) + (3*4) + (4*2)) = 2(6 + 12 + 8) = 52 Total cost = 52*3 = 156 tk.

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Bangladesh bank - officer ( general) - 27.04.2018

A. 6:10 pm
B. 7:05 pm
C. 8:15 pm
D. 6: 35 pm
E. None of these

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Answer: Option E

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3125 . The distance from the centre of a cirle of radiud 5 cm o a chord of lengh 8 cm -----

A. 5 cm
B. 4 cm
C. 3 cm
D. 2 cm

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Answer: Option C

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অফিসার (জেনারেল) - 12.11.2021

A. 5
B. 9
C. 6
D. 12

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Answer: Option A

Explanation:

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3127 . The effective speed of a boat travelling downstream is 20 kmph, whereas it is 10 kmph upstream. What is the speed of the stream current in kmph?

A. 3
B. 4
C. 5
D. none of these

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Answer: Option C

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3128 . The Ex-nor of this string '01010101' with '11111111' is

A. 10101010
B. 00110100
C. 01010101
D. 10101001

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Answer: Option C

Explanation:

Option a, c, d কোনোটিই বাক্যের অর্ত পরিপূর্ণ করতে পারে না। শূন্যস্থানে বসালে বাক্যের অর্থ হয় - আহত লোকটি কী বলল যখন যে আমাদের কাছে পৌঁচাল? সুতরাং সঠিক উত্তর (b).

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Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

A. 8000
B. 1000
C. 8
D. 8926

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Answer: Option C

Explanation:

458926 এখানে 8 এর face value 8 (Ans)

8 এর place value 8000

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3130 . the factor of x^2-5x-6 are

A. (x-6)(x+1)
B. (x+6)(x-1)
C. (x-3)(x+2)
D. (x-3)(x-2)

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Answer: Option A

Explanation:

x²-5x-6

=x²-6x+x-6

=x(x-6)+1(x-6)

=(x-6)(x+1)

(ans).

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Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. 190
B. 182
C. 176
D. 154

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Answer: Option A

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3132 . The floor of a company's office has an area of 20000 square feet. If the floor is in the shape of a square approxmately how many feet long is each side?

A. 140
B. 450
C. 500
D. 1000

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Answer: Option A

Explanation:

If the floor of a company's office has an area of 20,000 square feet and is in the shape of a square, then each side of the square can be found by taking the square root of the area. Therefore, the approximate length of each side is:

sqrt(20,000) = 141.42 feet

Rounding to the nearest whole number, each side of the square is approximately 141 feet. Therefore, the answer is "140."

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3133 . The following figure consists of twenty-seven cubes. How many cubes will get closed on all sides by other cubes?

A. 1
B. 2
C. 3
D. 6

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Answer: Option A

Explanation:

27 টি Cube এর মধ্যে শুধু মাঝের ১টি Cube চারদিকে আবদ্ধ।

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Bangladesh Bank - Assistant Director - 2015

3134 . The formula $b + \frac{x}{a} = c$ is rearranged to make x the subject.What is x?

A. $a (c - b)$
B. $a c - b$
C. $\frac{c - b}{a}$
D. $a c + b$

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Answer: Option A

Explanation:

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সমন্বিত ৮টি ব্যাংক ও ১টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার (16-05-2025)

A. AB/C
B. BC/A
C. A/C + B
D. A + B/C

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Answer: Option A

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3121 . The difference of two numbers is 20% of the large number. If the smaller number is 20 then the largest number is-

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3122 . The difference of two numbers is 20% of the larger number. If the smaller number is 12 the larger one is :

3123 . The dimensions of a box are 2,3 and 4 meters . the cost of painting the outer sides of the box at the rate of tk. 3 per square meter is ___

3125 . The distance from the centre of a cirle of radiud 5 cm o a chord of lengh 8 cm -----

3126 . The distance from the point P to two vertices A and B of an equilateral triangle are |PA| = 2 and | PB | = 3. What is the greatest possible value of | PC].

3127 . The effective speed of a boat travelling downstream is 20 kmph, whereas it is 10 kmph upstream. What is the speed of the stream current in kmph?

3128 . The Ex-nor of this string '01010101' with '11111111' is

3129 . The face value of 8 in the number 458926 is -

3130 . the factor of x^2-5x-6 are

3131 . The first 5 numbers in a regular esquence are 4, 10, 22, 46 and 94. What is the next number in the sequence?

3132 . The floor of a company's office has an area of 20000 square feet. If the floor is in the shape of a square approxmately how many feet long is each side?

3133 . The following figure consists of twenty-seven cubes. How many cubes will get closed on all sides by other cubes?

3135 . The greatest common factor of two positive integers is A. The least common multiple of the two numbers is B. If one of the number is C, then what is the other one?

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