1 . Consider the following recursive function fun (s , y). what is the value of fun ( 4, 3) int fun ( int x , int y) if ( x =0) return y; return fun ( x,1, x+y); |

A. 9
B. 10
C. 12
D. 13

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Answer: Option D

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Sonali &amp-Janata Bank | Officer (IT)| 04.01.2019

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2 . If (x+y)=8 and (x-y)=6, what is the value of xy?

A. 7
B. 6
C. 1
D. 3

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Answer: Option A

Explanation:

দেয়া আছে , x + y = 8 , x - y = 6xy = (x + y2)2 - (x - y2)2 = (82)2 - (62)2 = 644 - 364 = 64 - 364 = 284 = 7

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সমন্বিত ৮ ব্যাংক | অফিসার | 21-01-2022

B. 1
C. 2
D. 3

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Answer: Option B

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প্রবেশনারি অফিসার | 02-04-2022

A. 10
B. 11
C. 18
D. None of these

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Answer: Option B

Explanation:

Let,

shorter length = X

∴ Bigger length = X + 18

ATQ,

X + (X + 18) = 40

2x + 18 = 40

2x = 40 - 18

2x = 22

∴ x = 11

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Bangladesh Bank - Officer - 2001

A. 1/4
B. 1/2
C. 1
D. 2
E. None of these

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Answer: Option D

Explanation:

13 = 13w / (1 - w)

1 = w/(1 - w)

1 - w = w

2w = 1

(2w)w = 1 × 2 = 2

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Bangladesh Bank - Assistant Director - 2009

A. 41/30
B. 2
C. 6
D. 16/5

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Answer: Option C

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7 . If for integer x, 5

A. 32
B. 22
C. 23
D. 27

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Answer: Option C

Explanation:

Since y = x + 5y = x + 5 then x + y = x + (x + 5) = 2x + 5x + y = x + (x + 5) = 2x + 5. So, we need to find the greatest possible integer value of 2x + 52x + 5.
Multiply 5

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Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

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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9 . 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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10 . IF x+y=9 and x-y = 5 the value of 4xy is:

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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12 . 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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14 . If X is an odd integer and Y is an even integer, which of the following statements is(are) always true? I. X + Y is odd II. XY is odd III. 2X+Y is even.

A. I only
B. II and III only
C. I and III only
D. III only

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Answer: Option C

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15 . If x>0 and x+y>0, which of the following must be true?

A. y>0
B. y<0
C. y>x
D. none of these

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Answer: Option A

Explanation:

এখানে X এর মান 0 থেকে বড়। সুতরাং X এর চিহ্ন সবসময় পজেটিভ(+) হবে।

অন্যদিকে, দুইটি সংখ্যার যোগফল পজেটিভ(+) তখনই হবে, যখন দুইটি সংখ্যা উভয়ই পজেটিভ(+) হবে

যেহেতু X এর চিহ্ন পজেটিভ(+), সুতরাং Y এর চিহ্ন অবশ্যই পজেটিভ(+) হবে এবং Y এর মান 0 থেকে বড় হবে।

সেজন্য, Y>0

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1 . Consider the following recursive function fun (s , y). what is the value of fun ( 4, 3) int fun ( int x , int y) if ( x =0) return y; return fun ( x,1, x+y); |

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2 . If (x+y)=8 and (x-y)=6, what is the value of xy?

3 . The equation x+y=xy =x/y has how many real solution?

4 . A 40-meter long rope is cut into two unequal pieces. If one piece is 18 meter longer than the other, what is the length ( in meter ) of the shorter piece ?

5 . If 13 =13w / ( 1 - w ), then ( 2w )2 =

6 . If 5/8 = 3/x and y = 1/5, what is the value of (x + 6y)?

7 . If for integer x, 5

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

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

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

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

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

14 . If X is an odd integer and Y is an even integer, which of the following statements is(are) always true? I. X + Y is odd II. XY is odd III. 2X+Y is even.

15 . If x>0 and x+y>0, which of the following must be true?

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