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10486 . $a - {a - (a + 1)}$ = কত?

A. $a + 1$
B. $a - 1$
C. $1$
D. $a$

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Answer: Option A

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প্রাথমিক বিদ্যালয় সহকারী শিক্ষক নিয়োগ পরীক্ষা-2006-(চট্টগ্রাম বিভাগ-02) (09-12-2006)

10487 . $\frac{1}{x} + \frac{1}{y} = 3$ এবং $\frac{1}{x^{2}} - \frac{1}{y^{2}} = 9$ হলে $\frac{1}{x} - \frac{1}{y} =$ কত?

A. $1$
B. $\frac{1}{3}$
C. $3$
D. $9$

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Answer: Option C

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বাংলাদেশ পাবলিক সার্ভিস কমিশন (BPSC) || জুনিয়র ইন্সট্রাক্টর (18-03-2023) ||

A. ৬০০
B. ৬৮০
C. ৭২০
D. ৮৪০

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Answer: Option B

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10489 . P, Q, R are employed to do a work for Tk. 5,750. P and Q together finished $\frac{19}{23}$ of work and Q and R together finished $\frac{8}{23}$ of work Wage of Q, in Taka, is

A. $1000$

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Answer: Option A

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Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

10490 . There is a point in a circle. What is the probability that this point is closer to its circumference than to the center?

A. $\frac{3}{4}$

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Answer: Option A

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Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

10491 . If $3^{(n + 4)} - 3^{(n + 2)} = 8$ What is the value of n?

A. $- 2$

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Answer: Option A

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Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

10492 . $\log_{x} \sqrt{343} = \frac{3}{2}$ হলে $x$ =?

A. $\sqrt{7}$
B. $7$
C. $7 \sqrt{7}$
D. $7^{2}$

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Answer: Option B

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বিভিন্ন মন্ত্রণালয়/বিভাগ/অধিদপ্তর | প্রশাসনিক কর্মকর্তা (মুক্তিযোদ্ধা) | ০৮.০৩.২০১৮

10493 . $০ . ২ \times ০ . ১ = ?$

A. $০ . ২$
B. $০ . ০ ২$
C. $২$
D. $\frac{১}{২}$

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Answer: Option B

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10494 . $a^{2} = 3 a - 1$ হলে, $\frac{a^{8} + 1}{a^{4}}$ এর মান কত ?

A. $47$
B. $49$
C. $51$
D. $53$

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Answer: Option A

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10495 . যদি $x + y = a, x - y = b$ হয় তাহলে $2 x y =$ কত?

A. $\frac{(a + b)}{2}$
B. $2 x + y$
C. $\frac{a^{2} - b^{2}}{2}$
D. $\frac{a - b}{x - y}$

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Answer: Option C

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জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (কম্পিউটার অপারেটর) 03-04-2021

10496 . $\frac{2 \tan θ}{1 + \tan^{2} θ} = ?$

A. $\tan z^{2} θ$
B. $2 \cos^{2} \frac{θ}{2}$
C. $2 \sin θ \cos θ$
D. $\cos 2 θ$

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Answer: Option C

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10497 . $\frac{5 . 3^{n} - 27 . 3^{n - 2}}{3^{n} - 3^{n - 1}}$ এর মান কত?

A. $0$
B. $1$
C. $2$
D. $3$

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Answer: Option D

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10498 . $f (x) = x^{3} - 2 x + 10$ হলে, $f (x)$ = কত?

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

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Answer: Option D

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10499 . $p^{6} - q^{6}$ এর উৎপাদক কোনটি?

A. $(p + q) (p - q) (p^{2} + p q + q^{2}) (p^{2} - p q + q^{2})$
B. $(p + q) (p - q) (p^{2} - p q + q^{2}) (p^{2} + q^{2})$
C. $(p + q) (p - q) (p^{2} - p q + q^{2}) (p^{2} - q^{2})$
D. $(p^{2} + q^{2}) (p^{2} - q^{2})$

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Answer: Option A

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জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (কম্পিউটার অপারেটর) 03-04-2021

A. ১৭
B. ২৮
C. ২১
D. ২০

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Answer: Option D

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