3871 . x% of y is y% of--

A. x/100
B. y/100
C. x
D. 100x

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Answer: Option C

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3872 . X% Y is 10,Y% of 120 is 48, what is X.

A. 40
B. 25
C. 15
D. 10

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Answer: Option B

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3873 . X's marks are 70, 90, 65, 85 and 75. What marks he must get on the next test to raise her average to 80 ?

A. 80
B. 85
C. 90
D. 95

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Answer: Option D

Explanation:

Total marks in 6 test = (6*80) = 480

Total marks in 5 test = (70 + 65 + 90 + 75 + 85) = 385

So, marks in the 6th test = (480 - 385) = 95

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Bangladesh Bank - Officer - 2001

A. 130
B. 155
C. 330
D. 425

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Answer: Option A

Explanation:

To find the value of x when x is divided by y, the remainder is 5, and x/y = 5.20, you can use the following approach:

Let's first express the given information mathematically:

x divided by y with a remainder of 5 can be written as: x = 5y + 5

x/y = 5.20 can be written as: x/y = 520/100

Now, we have two equations:

x = 5y + 5 x/y = 520/100

We can solve the second equation for x:

x = (520/100) * y

Now, let's substitute this expression for x into the first equation:

5y + 5 = (520/100) * y

Now, solve for y:

5y + 5 = (5.20) * y

5y + 5 = 5.2y

Now, subtract 5y from both sides:

5 = 0.2y

Now, divide by 0.2:

y = 5 / 0.2

y = 25

Now that we have found the value of y, we can find the value of x using the first equation:

x = 5y + 5 x = 5 * 25 + 5 x = 125 + 5 x = 130

So, the value of x is 130.

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বাপেক্স || সহকারী ব্যবস্থাপক (27-01-2023)

A. 6 hours
B. 8 hours
C. 10 hours
D. 12 hours

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Answer: Option B

Explanation:

X + Y + Z can do 1/6 of job in one hour……1
X + Y can do 1/8 of job in one hour……2
Y + Z can do 1/12 of job in one hour……3
adding 2&3 we get
X + Y + Y + Z = 1/8 + 1/12
X + Z + 2Y = 5/24…4
subtracting 1 from 4 we get
Y = 5/24 – 1/6 = 1/24.substituting the value of Y in 4 we have
X + Z + 2/24 = 5/24
X + Z = 5/24 – 2/24 = 3/24 = 1/8
hence X&Z will do 1/8 of job in one hour.
So X & Z will do the work in 8 hours.

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Two Combined Bank Recruitment Test Post: Officer - 28/09/2018

A. 2 < x < 3
B. − 3 < x < − 2
C. x<2
D. x<3

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Answer: Option B

Explanation:

x2 - 5x + 6<0
⇒x2 - 3x - 2x + 6<0
⇒x(x - 3) - 2(x - 3)<0
⇒(x - 3)(x - 2)<0
(x - 3) ও (x - 2) এর যে কোনো একেটির মান ঋণাত্মক হলে অসমতাটি সত্য হবে।

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3877 . x = 2y + 3 and y = - 2; Quantity A = x and Quantity B = - 1

A. Quantity in A is greater
B. Quantity in B is greater
C. The two quantities are equal
D. The relationship cannot be determine from the information given

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Answer: Option C

Explanation:

x = 2y + 3

y = - 2

x = 2 ( - 2) + 3 = - 1

A = x = - 1

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3878 . x = 2y + 3 and y = -2 ; Quantity A = x and Quantity B = -1

A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

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Answer: Option C

Explanation:

x = 2y + 3

y = - 2

x = 2 ( - 2) + 3 = - 1

A = x = - 1.

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Bangladesh Bank - Assistant Director - 2009

A. Tk. 45,000
B. Tk. 50,000
C. Tk. 60,000
D. Tk. 80,000

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Answer: Option C

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3880 . X and Y start a business by investing a certain amount in the ratio 9:16. Both of them invest for an equal period of time. At the end of the term, X's share of profit is what per cent less than that of Y?

A. $62 \frac{1}{2}$
B. $60$
C. $55 \frac{2}{3}$
D. $43 \frac{3}{4}$

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Answer: Option D

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 15 days
B. 20 days
C. 10 days
D. 12 days

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Answer: Option C

Explanation:

y can do in 1 day = 1/(7x5) = 1/35
x & y can do in 1 day = 1/20 + 1/35 = 11/140
Now,
11/140 work is done in 1 day
So, 1 work is done in 140/11 day
So, 11/14 work is done in (140x11)/(11x14) = 10 days.

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 18 Days
B. 27 Days
C. 36 Days
D. 42 Days

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Answer: Option C

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Uttara Bank PLC || Probationary Officer (09-11-2024) || 2024

A. 22 days
B. 60 days
C. 20 days
D. 25 days

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Answer: Option B

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3884 . X is west of Y and Y is North of Z. M is south of X. Which direction is M to Z ?

A. West
B. South
C. North
D. East

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Answer: Option A

Explanation:

Y এর পশ্চিমে X এবং Z এর উত্তরে Y. X এর দক্ষিণে M

থেকে Z কোন দিকে ?

M is West of Z.

তাই উত্তর হবে b) West.

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Bangladesh Bank - Assistant Director - 2010

A. Z/4-X
B. 4Z/(X2-4X)
C. Z/(X=4)
D. none

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Answer: Option B

Explanation:

ব্যাখাঃ

x শিক্ষার্থীর প্রত্যেকে চাঁদা দেয় z/x টাকা

(x - 4) শিক্ষার্থী প্রত্যকে চাঁদা দেয় = z/ x - 4 টাকা

বেশি চাদার পরিমান = z/x - 4 - z/x = 4z / x² - 4x

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3871 . x% of y is y% of--

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

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3872 . X% Y is 10,Y% of 120 is 48, what is X.

3873 . X's marks are 70, 90, 65, 85 and 75. What marks he must get on the next test to raise her average to 80 ?

3874 . x, y are positive integers. When x is divided by y, the remainder is 5. If x/y=5.20, what is the value of x?

3875 . X,Y and Z can do a piece of work in 6 hours.X and Y can do the same work in 8 hours and Y and Z can do the same work in 12 hours.In how many times will X and Z do the same work?

3876 . x 2 − 5 x + 6 < 0 = ?

3877 . x = 2y + 3 and y = - 2; Quantity A = x and Quantity B = - 1

3878 . x = 2y + 3 and y = -2 ; Quantity A = x and Quantity B = -1

3879 . X and Y invested in a business. They earned some profit which they divided in the ratio of 2 : 3. If X invested Tk. 40,000 the amount invested by Y is:

3881 . x can do a piece of work in 20 days and Y can do the 1/7th of the same work in 5 days. In how many days together they can complete the 11/14th of the total work?

3882 . X can do a piece of work in 24 days. When he had worked for 4 days, Y joined him. If the work was completed in 16 days, Y alone can finish that work in:

3883 . X cm complete a certain work in same time in which Y and Z together can do it. If X and Y together can finish it in 10 days and Z alone in 15 days, then Y alone can do it in ?

3884 . X is west of Y and Y is North of Z. M is south of X. Which direction is M to Z ?

3885 . X number of students in a class agreed to donate a total of Tk. Z to a charity. If 4 students drop out, how much more will each of the rest have to contribute so that the total donation remains the same?

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