9616 . Which of the following is equal to 1/5 of 0.02 percent?

A. 0.40
B. .0040
C. .040
D. .0004

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Answer: Option B

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পিকেএসএফ ।। সহকারী ব্যবস্থাপক (16-06-2023)

A. 0.045%
B. 0.45%
C. 4.5%
D. 45%
E. None of these

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Answer: Option D

Explanation:

(. 45 × 100) = 45 %

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হিসাব_মহানিয়ন্ত্রক (সিজিএ) | অডিটর-07-01-2022

A. 25
B. 15
C. 45
D. 37.5

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Answer: Option D

Explanation:

250 of 15%

= 250 of 15/100

= 250 of 0.15

= 37.5.

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Bangladesh Bank - Assistant Director - 2008

A. ৭০
B. ৭২
C. ৬৬
D. ৭৪
E. ৮০

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Answer: Option B

Explanation:

The least common multiple of 6, 7 and 8 is 168. To distribute the apples among the persons, the number of apples must be multiple of 168. Now, twice of 168 = 168×2 = 336.

So, minimum number of apples must be added = 336 - 264 = 72

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Bangladesh Bank - Assistant Director - 2006

A. 5
B. 6
C. 25
D. 30
E. None of these

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Answer: Option E

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9621 . What annual rate of interest was paid if Tk 60000 earned Tk 6000 in interest in 5 years?

A. 2%
B. 3%
C. 4%
D. 5%
E. 6%

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Answer: Option A

Explanation:

I = pnr/100
⇒r=I×100/p×n
=6000×100/60000×5
= 2

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Bangladesh Bank - Assistant Director - 2008

9622 . u=x3+y3+z3+3xyzxdudx+ydudy+zdudz=?

A. $u$
B. $2 u$
C. $4 u$
D. $3 u$

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Answer: Option D

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প্রতিরক্ষা মন্ত্রণালয় || বাংলাদেশ জরিপ অধিদপ্তর || সহকারী সুপারিনটেনডেন্ট অব সার্ভে (27-04-2005)

9623 . $T h e f a c t o r o f 4 x^{4} + 1 i s$

A. $(2 x^{2} + 2 x - 1) (2 x^{2} - 2 x + 1)$
B. $(2 x^{2} + 2 x + 1) (2 x^{2} - 2 x + 1)$
C. $(2 x^{2} + 2 x - 1) (2 x^{2} - 2 x - 1)$
D. $(2 x^{2} + 2 x + 1) (2 x^{2} - 2 x - 1)$

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Answer: Option B

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জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা-(NSI) Assistant Director- Research officer &amp- Assistant Programmer-০৮/১০/২০২১

9624 . $T h e f a c t o r o f 4 x^{4} + 1 i s$

A. $(2 x^{2} + 2 x - 1) (2 x^{2} - 2 x + 1)$
B. $(2 x^{2} + 2 x + 1) (2 x^{2} - 2 x + 1)$
C. $(2 x^{2} + 2 x - 1) (2 x^{2} - 2 x - 1)$
D. $(2 x^{2} + 2 x + 1) (2 x^{2} - 2 x - 1)$

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Answer: Option B

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9625 . The sum of the 3 digits x,y and z is 12. What is the largest 3 digit number that can be found using each of the digiT exactly once?/তিনটি সংখ্যা x,y এবং z এর সমষ্টি ১২। সংখ্যা তিনটিকে একবার করে ব্যবহার করে গঠিত তিন অঙ্কের বৃহত্তম সংখ্যাটি কত?

A. ৯১২
B. ৯২১
C. ৯৩০
D. ১০৯২
E. ১২৯০

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Answer: Option C

Explanation:

To find the largest 3-digit number using the digits x, y, and z (where x + y + z = 12), you want to maximize the leftmost digit to make the number as large as possible.

The largest possible leftmost digit is 9, as it's the largest single-digit number. To form the largest 3-digit number, you should place 9 as the leftmost digit. Now, you need to arrange the remaining digits (x and y) in the rightmost positions to maximize the number further.

To maximize the number, you should place the next largest digit (8, if available) in the hundreds place and the remaining digit in the tens place. If 8 is not available, use the next largest available digit.

So, if we place 9 in the hundreds place, and if x and y are the remaining digits, the largest number will be 9xy.

Now, we need to find the combination of x and y that adds up to 12. The only combination that satisfies this is x = 3 and y = 0.

So, the largest 3-digit number using the digits x, y, and z (where x + y + z = 12) is 930.

Therefore, the correct answer is 930.

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9626 . The ratio of 1/4 to 3/5 is what?

A. 1 to 3
B. 5 to 12
C. 8 to 10
D. 5 to 15

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Answer: Option B

Explanation:

হর 4 এবং 5 এর ল.সা.গু = 20

(1/4 ´ 20) : (3/5 ´ 20)

= 5 : 12

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পল্লী বিদ্যুতায়ন বোর্ড সহকারী সচিব/সহকারী পরিচালক(প্রশাসন)-২৮.০৬.২০১৩

A. 4.5%
B. 5%
C. 5.5%
D. None of these

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Answer: Option A

Explanation:

Let,
The price of rice in the year 1994 = Tk. 100
So, the price of rice in the year 1995 = 100 + 10 = Tk. 110
The price of rice in the year 1996 = 110 - 5.5 = 104.5
The increase in price = 104.5 - 100 = 4.5%

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9628 . The price of a certain DVD is discounted by 10% and the reduced price is then discounted by 10%. The series of successive discounts is equivalent ta a single discount of-/একটি DVD এর মূল্য ১০% ছাড় দেওয়া হল। অতঃপর হ্রাসকৃত মূল্য হতে পুনরায় ১০% ছাড় দেওয়া হয়। দুইটি ক্রমিক ছাড় এককালীন ছাড়ের সমতুল্য--

A. 20%
B. 19%
C. 11%
D. 18%
E. 10%

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Answer: Option B

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Sonali- Janata &amp- Agrani Bank Offier (Cash Recruitment) 22.02.2008

A. Tk 2000
B. Tk 2025
C. Tk 2050
D. Tk 2100
E. Tk 2150

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Answer: Option E

Explanation:

I=p(1+r)^n

=10000(1+5/100)⁴

=12155.06

So, Compound Interest=12155.06-10000=2155.06≈2155

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9630 . The 2nd angle of a right angle is 30°. Then what is the third angle?/একটি সমকোণী ত্রিভুজের দ্বিতীয় কোণটির মাপ ৩০° হলে তৃতীয় কোণটির মাপ কত?

A. 80°
B. 50°
C. 60°
D. 70°
E. None of them

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Answer: Option C

Explanation:

First,we know that all the angles in a triangle add up to 180 degrees.

Each triangle has 3 angles. Thus, we have the sum of three angles as shown:

180 = A + B + C

where we have angles A, B, and C. In our right triangle, one angle is 30 degree and we'll call that angle A. The other known angle is 90 degrees and we'll call this angle B. Thus, we have

180 = 30 + 90 + C

Simplify and solve for C.

180 = 120 + C

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9617 . Which of the following is equal to 0.45?/নিচের কোনটি ০.৪৫ এর সমান?

9618 . What number divided by 250 gives 15%?/কোন সংখ্যাকে ২৫০ দ্বারা ভাগ করলে ভাগফল ১৫% এর সমান হয়?

9620 . What is the cube root of the product of the three numbers 12, 18 and 125?

9621 . What annual rate of interest was paid if Tk 60000 earned Tk 6000 in interest in 5 years?

9626 . The ratio of 1/4 to 3/5 is what?

9629 . The compound interest on Tk 10000 for 4 years 5% per annum will be approximately--/৫% চক্রবৃদ্ধি সুদে ১০০০০ টাকার ৪ বছরের সুদ আনিমানিক--

9630 . The 2nd angle of a right angle is 30°. Then what is the third angle?/একটি সমকোণী ত্রিভুজের দ্বিতীয় কোণটির মাপ ৩০° হলে তৃতীয় কোণটির মাপ কত?

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