9616 . $x + \frac{1}{x}$ = 2 হলে ${(x - \frac{1}{x})}^{2}$ এর মান কত?

B. 1
C. 2
D. 4

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

দেওয়া আছে,

x + \frac{1}{x} = 2 (x + \frac{1}{x})^{2} = (x + \frac{1}{x})^{2} + 4 x \frac{1}{x} = (2)^{2} - 4 = 4 - 4 = 0

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সিজিডিএফ (ডিফেন্স ফাইন্যান্স ডিপার্টমেন্ট) || জুনিয়র অডিটর- 01-04-2022

9617 . $x + \frac{1}{x}$ = 2 হলে , ${(x - \frac{1}{x})}^{2}$ এর মান কত ?

B. 1
C. 2
D. 4

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

খাদ্য অধিদপ্তর || উপ খাদ্য পরিদর্শক (19-11-2021) || 2021

9618 . $x + \frac{1}{x}$ = 6 হলে ${(x - \frac{1}{x})}^{2}$ এর মান কত?

A. 29
B. 31
C. 32
D. 34

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

কারা অধিদপ্তর || কারারক্ষী ও মহিলা কারারক্ষী -২ (19-04-2024)

9619 . $(x + \frac{1}{x})$ = 3 হলে, $(x^{5} + \frac{1}{x^{5}})$ = কত?

A. 223
B. 123
C. 122
D. 323

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

কারা অধিদপ্তর || কারারক্ষী ও মহিলা কারারক্ষী -২ (19-04-2024)

9620 . $(x + 1) (4 x - 7) - (x - 1) (x + 5) = 3 {(x - 2)}^{2} + 5$ হলে , x এর মান হবে -

A. 3
B. 5
C. -1
D. -3

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

প্রাথমিক বিদ্যালয় সহকারী শিক্ষক নিয়োগ পরীক্ষা-2008-(কংস-05) (27-10-2008)

9621 . $X + \frac{1}{4} = \sqrt{3}$ হলে $X^{3} + \frac{1}{X^{3}}$ এর মান কত?

A. 1
B. 3
C. 9

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

ঔষধ প্রশাসন অধিদপ্তর || অফিস সহকারী কাম কম্পিউটার মুদ্রাক্ষরিক (26-04-2024)

9622 . $x + \frac{1}{3 x}$ = 4 হলে $9 x^{2} + \frac{1}{x^{2}}$ এর মান কত?

A. 108
B. 138
C. 148
D. 158

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ সরকারি কর্ম কমিশন || রাষ্ট্রপতির কার্যালয় || সহকারী প্রটোকল অফিসার (29-04-2024)

9623 . $x + 1 / x = \sqrt{3}$ হলে $x^{3} + 1 / x^{3}$ এর মান কত?

A. 2
B. 4
D. 6

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ বেসামরিক বিমান চলাচল কর্তৃপক্ষ || নিরাপত্তা অধিক্ষক (03-02-2024)

9624 . Which of the following is equal to 1/5 of 0.02 percent?

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

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

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

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

(. 45 × 100) = 45 %

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড || সহকারী পরিচালক (07-02-2025) || 2025

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

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

250 of 15%

= 250 of 15/100

= 250 of 0.15

= 37.5.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2008

A. ৭০
B. ৭২
C. ৬৬
D. ৭৪
E. ৮০

View Answer	Favorite Question	Report

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

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2006

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

View Answer	Favorite Question	Report

Answer: Option E

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

9629 . 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%

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

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

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2008

9630 . u=x3+y3+z3+3xyzxdudx+ydudy+zdudz=?

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

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

9625 . Which of the following is equal to 0.45?/নিচের কোনটি ০.৪৫ এর সমান?

9626 . What number divided by 250 gives 15%?/কোন সংখ্যাকে ২৫০ দ্বারা ভাগ করলে ভাগফল ১৫% এর সমান হয়?

9628 . What is the cube root of the product of the three numbers 12, 18 and 125?

9629 . What annual rate of interest was paid if Tk 60000 earned Tk 6000 in interest in 5 years?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক