2356 . If x>5 and y<-1, which of the following statements is true

A. (x+4y)>1
B. x>-4y
C. -4x<5y
D. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

x > 5 and y < -1, we can make the following conclusions:

x + y > 4: Since x is greater than 5 and y is less than -1, their sum will be greater than 4. Therefore, the statement "x + y > 4" is true.

x * y < -5: Since x is greater than 5 and y is less than -1, their product will be less than -5 (because a positive number multiplied by a negative number gives a negative result). Therefore, the statement "x * y < -5" is true.

Therefore, the true statement is "x + y > 4", and the statement "x * y < -5" is also true.

So , the correct Ans is None of these.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2357 . If $x > y$ and $w < x$ , which of the following is always true?

A. $z > w$
B. $y > w$
C. $y = w$
D. $z < x$
E. $x < 2$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Officer(Cash) - 2011

A. xy>0
B. x/y >0
C. y/x >1
D. x-y >0

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Here, x/y>1 and y is a positive integer.

For example, if x=3 and y=2 then 3/2>1

so y/x or, ⅔ can never be greater than 1

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2359 . If x>y>1 and xy=z, which of the following is true?

A. y
B. y=z
C. z=1
D. none of these

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

xy+z=xy+xz
z=xz
xz-z=0
z(x-1)=0

Means;
either z=0
OR
x-1=0 i.e. x=1

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2360 . If xaxb = 1 and x ≠ 1 then a + b =?

B. -1
C. x
D. 1

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2361 . If xy= 2 any $x y^{2} = 16$ , , what is the value of 2 x?

A. $4$
B. $2$
C. $\frac{1}{4}$
D. $8$

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

অফিসার (সাধারণ) ২৭.১২. ২০১৯

A. -x
B. y
C. -y
D. (x-y)

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Here, x<0 or, x is negative.

Now, if y is positive, the multiply of x & y will be negative.

Therefore, xy>0 is possible only if y is negative or y<0. Then, xy = ( - ve) x ( - ve) = + ve >0.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2363 . If xy>0 and yz<0, Which of the followings must be negative :

A. xy2z
B. xyz2
C. xyz
D. None

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

xy> 0 অর্থাৎ xy এর গুনফল ধনাত্নক সংখ্যা
yz<0 অর্থাৎ yz এর গুনফল ঋনাত্নক সংখ্যা

এখন, ধনাত্মক সংখ্যা× ঋণাত্মক সঙখ্যা = ঋণাত্মক সংখ্যা
xy×yz

অর্থাৎ<0xy>0

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2364 . If xy>0 and yz<0, which of the followings must be negative?

A. xyz

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বিমান বাংলাদেশ এয়ারলাইন্স লিঃ নিয়োগ পরীক্ষা-২০১৮। গ্রাউন্ড সার্ভিস অ্যাসিসটেন্ট। ১৩.১০.২০১৮

2365 . If $x \geq$ and $y \geq$ then which of the following must be true?

A. $(x + y) \leq 22$
B. $(x - y) = 22$
C. $(x + y) = 22$
D. $(x + y) \geq 22$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2010

2366 . If y $(\frac{4 x - 2}{4})$ = y and y not =0,then x=?

A. $\frac{2}{3}$
B. $\frac{4}{3}$
C. $\frac{1}{3}$
D. $\frac{3}{2}$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2010

A. x>2 or x <0
B. x>0
C. x<0
D. -2
E. None of these

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

সমীকরণ হতে দেখা যাচ্ছে, (x−2)/x এর ধনাত্মক মানের জন্য y এর মান ধনাত্মক হবে। এখন, (x−2)/x এর মান ঋণাত্মক হবে, যদি (i) x - 2 > 0 হয় এবং x > 0 হয় অথবা (ii) x - 2 < 0 হয় এবং x < 0 হয়।[ঋণাত্মক সংখ্যা দিয়ে ভাগ করলে ধনাত্মক সংখ্যা পাওয়া যায়]।
(i) হতে x > 2 হলে y এর মান ধনাত্মক হবে
(ii) হতে x < 0 হলে y " " " "
∴ নির্ণেয় সীমা x > 2 or x< 0

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2368 . If y = (3x - 6)/x, then for what values of x, y will be positive?

A. x > 2 or x < 0
B. x > 0
C. x < 0
D. -2 < x < 2

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

সমীকরণ হতে দেখা যাচ্ছে,
x-2/x
এর ধনাত্মক মানের জন্য y এর মান ধনাত্মক হবে। এখন,
x−2/x
এর মান ঋণাত্মক হবে, যদি (i) x - 2 > 0 হয় এবং x > 0 হয় অথবা (ii) x - 2 < 0 হয় এবং x < 0 হয়।[ঋণাত্মক সংখ্যা দিয়ে ভাগ করলে ধনাত্মক সংখ্যা পাওয়া যায়]।
(i) হতে x > 2 হলে y এর মান ধনাত্মক হবে
(ii) হতে x < 0 হলে y " " " "
∴
নির্ণেয় সীমা x > 2 or x< 0

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2369 . If y = (3x-6)/ x, then for what values of x, y will be positive?

A. x>2 or x<0
B. x>0
C. x<0
D. -2
E. None of these

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

সমীকরণ হতে দেখা যাচ্ছে,(x-2)/x এর ধনাত্মক মানের জন্য y এর মান ধনাত্মক হবে। এখন, (x-2)/x এর মান ঋণাত্মক হবে, যদি (i) x - 2 > 0 হয় এবং x > 0 হয় অথবা (ii) x - 2 < 0 হয় এবং x < 0 হয়।[ঋণাত্মক সংখ্যা দিয়ে ভাগ করলে ধনাত্মক সংখ্যা পাওয়া যায়]।
(i) হতে x > 2 হলে y এর মান ধনাত্মক হবে
(ii) হতে x < 0 হলে y " " " "
∴ নির্ণেয় সীমা x > 2 or x< 0

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2370 . If y =2.5 x +4 and 15x-2 =40 then y=?

A. 36
B. 28
C. 22
D. 11

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

15x - 2 = 40

⇨ 15x = 42

y = 2 .5x + 4

⇨ 6y = 15x + 24

⇨ 6y = 42 + 24 = 66

⇨ y = 11

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

প্রধান প্রশাসনিক কর্মকর্তার কার্যালয় ( প্রতিরক্ষা মন্ত্রণালয়) সহকারী পরিচালক ০৫.০৪.২০১৯

2356 . If x>5 and y<-1, which of the following statements is true

2358 . If x>y and y is a positive integer, which of the following cannot be true?

2359 . If x>y>1 and xy=z, which of the following is true?

2360 . If xaxb = 1 and x ≠ 1 then a + b =?

2362 . If xy>0 and x<0, which of the following must be negative?

2363 . If xy>0 and yz<0, Which of the followings must be negative :

2364 . If xy>0 and yz<0, which of the followings must be negative?

2367 . If y = ( 3x - 6 )/x, then for what values of x, y will be positive?

2368 . If y = (3x - 6)/x, then for what values of x, y will be positive?

2369 . If y = (3x-6)/ x, then for what values of x, y will be positive?

2370 . If y =2.5 x +4 and 15x-2 =40 then y=?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক