2641 . Length of a rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area?

A. 75%
B. 55%
C. 75/2%
D. 60%

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Answer: Option C

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2642 . Length of a train is 170 meters and speed of train is 63 km/hr. This train can pass a bridge in 30 seconds, then find the length of the bridge.

A. 355 m
B. 365 m
C. 325 m
D. 312 m

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Answer: Option A

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Basic bank recruitment 2018; auditor 26.01.2018 || Image 2018

A. 2000
B. 1200
C. 1500
D. 750

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Answer: Option C

Explanation:

Difference between C's ratio and A and B's ratios together = 7 - (2 + 3) = 2

Ratio 2 ≡ 1500 TK

So, A will get 1500 TK.

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2644 . Let M be the median and m the mose of the following set of numbers: 10,70, 20,40,90. What if the average) arithmeti mean of M and m?

A. 50
B. 60
C. 62.5
D. 65

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Answer: Option C

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অফিসার (জেনারেল) - 12.11.2021

2645 . Let the functional relationship between y and x be given by $y = \sqrt{3} \sqrt{x}$ What will be the value of y if x=-27 ?

A. 3
B. 9
C. 3i
D. 9i

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Answer: Option D

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

A. 5 : 3
B. 6 : 7
C. 4 : 2
D. 5 : 8

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Answer: Option D

Explanation:

Here, x:y=3:4

Multiply by 2, x:y=6:8

x:z=6:5

So,z:y= 5:8.

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Bangladesh Bank - Assistant Director - 2008

A. 3
B. 13
C. 23
D. 15

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Answer: Option B

Explanation:

Let, now Lima's age be X years.
:. Rina's age is (X - 10) years
According to the question,
X + 7 = 2{(X - 10) + 7}
= > X + 7 = 2(X - 3)
= > X + 7 = 3X - 6
= > 2X - X = > 7 + 6
= > X = 13

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Sonali- Janata &amp- Agrani Bank Offier (Cash Recruitment) 22.02.2008

A. a circle
B. a right triangle
C. a rectangle
D. an isosceles triangle
E. None of these

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Answer: Option D

Explanation:

Let the points be A( - 4, 0), B(0, 5) and C(4, 0).

Now, AB = √{( - 4 - 0)² + (0 - 5)²} = √41

BC = √{(0 - 4)² + (5 - 0)²} = √41

CA = √{(4 + 4)² + (0 - 0)²} = 8

Here, AB = BC. So, the triangle will be an isosceles triangle.

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2649 . log36/log6 ___

A. 5
B. 8
C. 3
D. 2

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Answer: Option D

Explanation:

\frac{\log 36}{\log 6} = \frac{\log 6^{2}}{\log 6} = \frac{2 \log 6}{\log 6} = 2

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Bangladesh bank - officer ( general) - 27.04.2018

A. GRR
B. GSS
C. ISS
D. ITT

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Answer: Option A

Explanation:

Letter pattern - এর প্রথম সদস্য C দিয়ে শুরু এবং সহযোগী হিসেবে আছে M দুবার। C এর একটি Letter পরেরটি E ও M এর একটি Lette - এর পরেরটি O। Letter pattern - এর দ্বিতীয় সদস্য এদের (EOO) দিয়ে গঠিত। সুতরাং GQQ এর পরের সদস্য হবে ISS।

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2651 . Lubana purchased 20 kg of pulses at a rate of Tk. 14.25 per kg and 30 kg of pulses at a rate of TK. 11.50 per kg.She decided to mix the two and sold the mixture. To make a profit of 30% what price per kg should he sell the mixture ?

A. 15.60
B. 14.80
C. 16.38
D. 18.20

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Answer: Option C

Explanation:

স্ত্রীলিঙ্গ: যেসব পদে স্ত্রী জাতি বোঝায়, তাকে স্ত্রীলিঙ্গ বলে। যেমন: বালিকা, মাতা, মেয়ে, নারী, মাতুলানী ইত্যাদি। গণক শব্দটির স্ত্রীলিঙ্গ গণকী।

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2652 . M, N and P were each paid the same hourly rate rate to rate to paint a building.M worked for a full day, N worked for half a day and P worked half as long as N worked. Together they earned BDT 560. How much money did N receive?

A. 240
B. 160
C. 100
D. 320

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Answer: Option B

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SBAC Bank PLC || Trainee Junior Officer (28-09-2024) || 2024

A. 2
B. 7
C. 5
D. 8

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Answer: Option B

Explanation:

M ছাড়া 3 জন sister এবং 3 জন brother হয়। আবার N ছাড়া 2 জন brother এবং দ্বিগুণ বোন মানে 4 জন sister হয়।
অর্থাৎ M + 3 জন sister + 3 জন brother = 7 জন
N + 4 জন sister + 2 জন brother = 7 জন
সুতরাং Q এর children মোট 7 জন।

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সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

2654 . M men agreed to prchase a gift for Tk D. If 3 men drop out, How much more will each have to contribute toward the purchase of the gidt?

A. $\frac{M}{M - 3}$
B. $\frac{M D}{3}$
C. $\frac{3 D}{3 M - M^{2}}$
D. $\frac{3 D}{M^{2} - 3 M}$

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Answer: Option D

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প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021

A. 22
B. 25
C. 28
D. 32

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Answer: Option B

Explanation:

In a second A Produces = 120 /40 = 3

and In 1 second B Produces = 100/20 = 5

In 1 second (A + B) Produces = 3 + 5 = 8

8 is Produced in 1 second

200 is produced in 200/ 8 = 25 second

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Bangladesh Bank - Assistant Director - 2010

2641 . Length of a rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area?

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2642 . Length of a train is 170 meters and speed of train is 63 km/hr. This train can pass a bridge in 30 seconds, then find the length of the bridge.

2643 . Let A, B and C shares profit at the ratio of 2 : 3 : 7 and A and B together get Tk.1500 less than C gets. How much A will get:

2644 . Let M be the median and m the mose of the following set of numbers: 10,70, 20,40,90. What if the average) arithmeti mean of M and m?

2646 . Let x : y = 3 : 4 and x : z = 6 : 5 , then z : y = is ?

2647 . Lima is 10 years older than Rima. In 7 years time Lima will be twice as old as Rima. Find Lima's age now?

2648 . Lines joining points (-4, 0), (0, 5) and (4, 0) will form

2649 . log36/log6 ___

2650 . Look carefully for the letter pattern, and then choose which letters fill in the gap. CMM, EOO, GQQ----, KUU

2651 . Lubana purchased 20 kg of pulses at a rate of Tk. 14.25 per kg and 30 kg of pulses at a rate of TK. 11.50 per kg.She decided to mix the two and sold the mixture. To make a profit of 30% what price per kg should he sell the mixture ?

2652 . M, N and P were each paid the same hourly rate rate to rate to paint a building.M worked for a full day, N worked for half a day and P worked half as long as N worked. Together they earned BDT 560. How much money did N receive?

2653 . M is a girl and has the same number of brothers as sisters. N is a boy and has twice as many sisters as brothers. M and N are the children of Q. How many children does Q have?

2655 . Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.

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