2266 . If X% of y is 10, then what is y?

A. 10/x
B. 100/x
C. 1000/x
D. x/100

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Answer: Option C

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2267 . IF x(2x+y+z)=x(x+2y+z)=a, than find the value 'a' $i f (x + y + z) \neq 0$

A. $\frac{1}{2}$
B. $\frac{1}{3}$
C. $\frac{1}{4}$
D. $\frac{1}{8}$

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Answer: Option C

Explanation:

\frac{x}{2 x + y + z} = a, \frac{y}{x + 2 y + z} = a, \frac{z}{x + y + 2 z} = a S o, x = 2 a x + a y + a z y = a x + 2 a y + a z z = a x + a y + 2 a z N o w, x + y + z = 2 a x + a y + a z + a x + 2 a y + a y + a x + a y + 2 a z \Rightarrow x + y + z = 4 a x + 4 a y + 4 a z \Rightarrow x + y + z = 4 a (x + y + z) \Rightarrow 4 a = 1 a = \frac{1}{4}

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বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

2268 . If $x + 1 / x = 3$ then $x - 1 = ?$

A. $\sqrt{5}$
B. $\sqrt{15}$
C. $\sqrt{13}$
D. $\sqrt{7}$

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Answer: Option A

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সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021

2269 . If x+3=x+3, then what is the value of x?

A. 3
B. -3
D. $\sqrt{3}$

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Answer: Option C

Explanation:

\sqrt{x + 3} = \sqrt{x} + \sqrt{3} \Rightarrow {(\sqrt{x + 3})}^{2} = {(\sqrt{x} + \sqrt{3})}^{2} [বর্গ করে] \Rightarrow x + 3 = {(\sqrt{x})}^{2} + 2 \sqrt{x} . \sqrt{3} + {(\sqrt{3})}^{2} \Rightarrow x + 3 - x - 3 = 2 \sqrt{x} . \sqrt{3} \Rightarrow 0^{2} = {(2 \sqrt{x} . \sqrt{3})}^{2} [বর্গ করে] \Rightarrow 0 = 4 . x . 3 \Rightarrow x = \frac{0}{12} \Rightarrow x = 0 Answer : 0

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DESCO Recruitment Test 2022 | Sub Station Attendant | 17.09.2022

A. 2x+2y =2z
B. x-z=y-z
C. x=z/2
D. x-y=2z

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Answer: Option D

Explanation:

If x=y then y+y=z

So, 2y=z

But in option D, x-y=2z

So, y-y = 2z or, z =0 which is not possible so option D is not true

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2271 . If x+y=4 and x-y=3, then x+2y is :

A. 0.5
B. 4.5
C. 3.5
D. 4

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Answer: Option B

Explanation:

Here, x + y = 4

And, x - y = 3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

So, 2x = 7 [by addition]

or, x = 7/2 = 3.5

So, 3.5 + y = 4 [from first equation]

or, y = 4 - 3.5 = 2.5

Then, x + 2y = 3.5 + 2×0.5 = 3.5 + 1 = 4.5

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2272 . If $x + y = 7$ and $x - y = 3$ then $x^{2} - y^{2} = ?$

A. $- 4$
B. $4$
C. $10$
D. $21$

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Answer: Option D

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সমন্বিত ৯ ব্যাংক | 07-01-2022 ||

A. 24
B. 36
C. 28
D. 32
E. None of these

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Answer: Option E

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Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 5
B. 6
C. 7
D. 8

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Answer: Option B

Explanation:

X/Y = 2
or, Y = X/2
Now, X + Y = 9
or, X + X/2 = 9
or, 3X/2 = 9
So, X = 9×2/3 = 6

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2275 . If x+y=a and x-y=b, then 2xy=

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

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Answer: Option B

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সমন্বিত ৫ ব্যাংক || অফিসার (ক্যাশ) (11-03-2022)

A. always
B. only if x<0
C. x>9
D. only if x = 0
E. Never

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Answer: Option A

Explanation:

if x+y>4 and x<3 then y>1

to test the statement,

let x=1 then y will be 3.

that means y is always greater than 1

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2277 . If x + 1x = 4, then what is the value of xx2 - 3x + 1/

A. 4
B. 3
C. 2
D. 1

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Answer: Option D

Explanation:

Given that,
x + 1/x = 4
(x2+1)/x=4

x2+1=4x

Now,
x/(x2 - 3x + 1)
= x/(x2 + 1 - 3x)
= x/(4x - 3x)
= x/x
= 1

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2278 . If x + 2y = 2x + y, then x - y equal to--

B. 2
C. 4
D. 5

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Answer: Option A

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2279 . If x + 2y = 4 and x/y = 2, then determine the value of x and y?

A. 1, 2
B. 2, 4
C. 2, 1
D. 3, 4

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Answer: Option C

Explanation:

x/y=2
⇒x=2y
∴x+2y=x+x=4
⇒2x=4
⇒x=2
∴y=1

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2280 . If x + 2y ≤ 3, x > 0 and y > 0, then one of the solutions is--

A. x = -1, y = 2
B. x = 2, y = 1
C. x = 1, y = 1
D. x = 0, y = 0

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Answer: Option C

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2266 . If X% of y is 10, then what is y?

2270 . If x+y = z and x = y, then all of the following are true EXCEPT -

2271 . If x+y=4 and x-y=3, then x+2y is :

2273 . IF x+y=9 and x-y = 5 the value of 4xy is:

2274 . If x+y=9 and x/y=2, then x equals to ----

2276 . If x+y>4 and x<3 then y>1 is true

2277 . If x + 1x = 4, then what is the value of xx2 - 3x + 1/

2278 . If x + 2y = 2x + y, then x - y equal to--

2279 . If x + 2y = 4 and x/y = 2, then determine the value of x and y?

2280 . If x + 2y ≤ 3, x > 0 and y > 0, then one of the solutions is--

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