91 . 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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92 . x 2 − 5 x + 6 < 0 = ?

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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93 . 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?

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

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Answer: Option B

Explanation:

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97 . x% of y is y% of--

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

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Answer: Option C

Explanation:

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98 . With 12.50% simple interest rate how many years are needed for a principal to get double ?

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

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Answer: Option A

Explanation:

Principal with simple interest, A = P(1 + n r)

or, 2P = P(1 + n x 12.5/100)

or, 2P/P = 1 + n x 12.5/100

or, n x 12.5/100 = 2 - 1

or, n x 12.5/100 = 1

or, n = 1 x 100 / 12.5 = 8 years

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99 . Who is the tallest? Omar and Osman are of the same height Babu is shorter than Bithi. Bithi is taller than Osman. Omar is shorter than Babu.

A. Omar
B. Osman
C. Babu
D. None of these

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Answer: Option C

Explanation:

The letters are just written reversibly.

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100 . who is good in Hockey , Cricket and Volleyball?

A. Kamal
B. Rony
C. Jony
D. Jamal

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Answer: Option C

Explanation:

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101 . Who is good in Baseball, Volleyball and Hockey?

A. Kamal
B. Jony
C. Jamal
D. Rony

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Answer: Option D

Explanation:

Mr. X 1 বছরের জন্য 10,000 টাকার একটি Deposit certificate কিনল, যা 6 মাস পর 8%

হার চক্রবৃদ্ধি সুদ প্রদান করে । Mr. X মোট কত টাকা সুদ পাবে তা বের করতে হবে ।

এখানে, সুদাসল, c = ?; semi annually হওয়ায়, n = 2; সময় t = 1 বছর; আসল, p = 10,000 Tk.

সুদের হার, r = 8% = 81008100

আমরাজানি, = P(1 + rn)n×tP(1 + rn)n×t

= > c = 100(1 + 82×100)2×1100(1 + 82×100)2×1

= > c = 10,000(1 + 125)210,000(1 + 125)2

= > c = 10,000(2625)210,000(2625)2

= > c = 10,000×26×2625×2510,000×26×2625×25

= > c = 10,816.

অর্থাৎ তিনি মোট সুদ পাবেন = (c - p) Tk.

= (10,816 - 10,000) Tk. = 816 টাকা ।

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102 . who cannot be a member of a team of size 3?

A. Qazi
B. Liza
C. Nadir
D. Marry

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Answer: Option B

Explanation:

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103 . who can be a member of a team of size 5?

A. Rana
B. Liza
C. Pintu
D. Marry

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Answer: Option D

Explanation:

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104 . while working 7 hour a day , A alone can complete a piece of work in 6 days and B alone in 8 days . In what time would they complete it together , 8 hour a day?

A. 5 days
B. 3 days
C. 4 days
D. 3.6 days

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Answer: Option B

Explanation:

A can complete the work in 7*6 hrs = 42 hrs.
A can complete in 1 hr = 1/42 part.
B can complete the work in 7*8 hr = 56 hrs.
A&B together do in 1 hr = 1/42 + 1/56 = 7/168 = 1/24 part. So they will do in 8 hrs = 8*1/24 = 1/3 part.
Hence they need 1÷1/3 = 3 days to complete the work.

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সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. 3 : 7
B. 5 : 9
C. 7 : 11
D. None

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Answer: Option C

Explanation:

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

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

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92 . x 2 − 5 x + 6 < 0 = ?

93 . 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?

94 . 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?

95 . 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 ?

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

97 . x% of y is y% of--

98 . With 12.50% simple interest rate how many years are needed for a principal to get double ?

99 . Who is the tallest? Omar and Osman are of the same height Babu is shorter than Bithi. Bithi is taller than Osman. Omar is shorter than Babu.

100 . who is good in Hockey , Cricket and Volleyball?

101 . Who is good in Baseball, Volleyball and Hockey?

102 . who cannot be a member of a team of size 3?

103 . who can be a member of a team of size 5?

104 . while working 7 hour a day , A alone can complete a piece of work in 6 days and B alone in 8 days . In what time would they complete it together , 8 hour a day?

105 . Whichof the ratio is the greatest?

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