511 . Who is the father of Geometry ?

A. Aristotle
B. Euclid
C. Pythagoras
D. Kepler
E. Newton

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Answer: Option B

Explanation:

Euclid was a Greek mathematician and is also known as the 'father of Geometry'. He compiled elements which have several geometric theories. These are still used by mathematicians all around the world.

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Bangladesh Bank - Assistant Director - 2013 ||

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512 . With a uniform speed , a car covers a distance in 8 hours . Had the same distance could have been increased by 4 km/hr. The same distance could have been covered in 7 hours and 30 minutes. What is the distance covered?

A. 420 km
B. 480 km
C. 520 km
D. 640 km

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Answer: Option B

Explanation:

Correct option is B)

Let the distance be x Km.
Then,

x/2/5-x/8=4

∴x=480km.

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Senior Officer- 8 Bank Recruitment Test 31-08-2018

A. 2 hours 20 minutes
B. 2 hours 30 minutes
C. 1 hour 25 minutes
D. 2 hours 40 minutes
E. None of these

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Answer: Option E

Explanation:

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514 . Working alone Abu can finish a job in 40 days. Labu can do the same job in 60 days working alone. They start working together and work for 18 days. Then Harun joined them. The three men working together finished the job in 5 more days. In how many days could Harun finish the job working alone?

A. 120
B. 80
C. 72
D. 96
E. None of them

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Answer: Option A

Explanation:

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515 . X, Y & Z has started a business with a profit sharing ratio 7:8:9. If at the end of the year, Y gets a total of Taka 4,000, what will be Z's profit?

A. Tk. 4500
B. Tk. 4000
C. Tk. 3500
D. Tk. 5500

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Answer: Option A

Explanation:

Let, the profit of X, Y, Z are 7P, 8P, 9P

According to Question, 8P = 4000tk

P = 500tk

So, Z's profit will be = 9P = 9*500 = 4500tk (Ans)

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সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||

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

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Answer: Option B

Explanation:

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Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

517 . $(x^{2} + x - 20)$ এর উৎপাদক কোনটি

A. $(x - 5) + (x + 4)$
B. $(x + 5) + (x - 4)$
C. $(x + 4) + (x - 5)$
D. $(x - 4) + (x - 5)$

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Answer: Option B

Explanation:

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NRBC BANK PO/TAO (16-06-2023) || 2023

A. (x-5)(x+4)
B. (x+5)(x-4)
C. (x-10)(x-2)
D. (x-10)(x+2)

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Answer: Option B

Explanation:

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519 . $x^{3} < x^{2} < x$ , then the value of x could be

A. $0$
B. $1$
C. $1 / 3$
D. $2$

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Answer: Option C

Explanation:

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Bangladesh Bank - Assistant Director - 2010

520 . $x = \{- 4, - 2, 1, 3\} y = \{- 1, 4, 5\}$ If x is a number from set X, and y is a number from set Y. The probability that x + y is positive is closest to

A. 0.5
B. 0.6
C. 0.7
D. 0.8

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Answer: Option C

Explanation:

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Global Islami Bank || Probationary Officer (10-02-2024) || 2024

521 . $y^{2} - 15 y + 56 = 0,$ then $y = ?$

A. $- 5 & 6$
B. $- 7 & 8$
C. $6 & 9$
D. $7 & 8$

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Answer: Option D

Explanation:

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সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||

A. 20
B. 30
C. 40
D. 50

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Answer: Option A

Explanation:

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জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা-(NSI) Assistant Director- Research officer &amp- Assistant Programmer-০৮/১০/২০২১

A. 467
B. 900
C. 767
D. 1080

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Answer: Option B

Explanation:

15 % ছাড়ে,

15 টাকা বাাঁচানো যায় তালিকামূল্য = 100 টাকা হলে

135 টাকা বাঁচানো যায় তালিকামূল্য = ( 100 × 135) / 15 = 900 টাকা

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সমন্বিত ৮ ব্যাংক | অফিসার | 21-01-2022

A. 33
B. 34
C. 35
D. 31
E. 32

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Answer: Option E

Explanation:

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525 . y²-15y +56=0, then y=?

A. -5 & 6
B. -7 & 8
C. 6 & 9
D. 7 & 8

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Answer: Option D

Explanation:

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511 . Who is the father of Geometry ?

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512 . With a uniform speed , a car covers a distance in 8 hours . Had the same distance could have been increased by 4 km/hr. The same distance could have been covered in 7 hours and 30 minutes. What is the distance covered?

513 . Worker W produces n units in 5 hours, workers W & V working independently but at same time produces n units in 2 hours. How long would it take V alone to produce n units?

514 . Working alone Abu can finish a job in 40 days. Labu can do the same job in 60 days working alone. They start working together and work for 18 days. Then Harun joined them. The three men working together finished the job in 5 more days. In how many days could Harun finish the job working alone?

515 . X, Y & Z has started a business with a profit sharing ratio 7:8:9. If at the end of the year, Y gets a total of Taka 4,000, what will be Z's profit?

516 . 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 Z can the same work in 12 hours . In how many times will X and Z do the same work?

518 . x2+x−20=?

522 . You are lookng at a billboard 40m away with an angle of elevation of 30°30°. At what height is the billboard?

523 . You have saved 135 Taka by purchasing a blanket with15% discounton it. What is the quoted price of the blanket in Taka?

524 . You need to plant three along the perimeter of a rectangle whose width is 20 ft and length 60 ft. The distence between each plant should be 5 ft. How many trees will you need?

525 . y²-15y +56=0, then y=?

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