436 . The radious of the earth is 4 times that of the moon. How many times the surface area of the moon is to that of the earth?

A. 64
B. 6
C. 36
D. 32
E. 16

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Answer: Option E

Explanation:

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437 . The ratio between the perimeter and the breadth of a rectangle is 5 :1 . If the area of the rectangle is 216 cm2. what is the lenth of the rectangle?

A. 16 cm
B. 24 cm
C. 18 cm
D. None of these

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Answer: Option C

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অফিসার (ক্যাশ ) - Sonali | Rupali | BD Krishi | Rajshahi Krishi Unnayn | Investment Corporation Of Bangladesh - ২৯. ০৩.২০১৯

A. 7
B. 11
C. 13
D. 16

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Answer: Option C

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সমন্বিত ৯ ব্যাংক | 07-01-2022 ||

A. 2/7
B. 510
C. 5/9
D. 2/9
E. None of them

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Answer: Option D

Explanation:

total = 9 balls

red ball⇨ 2

So probability is = 2/9

Right Answer is ⇨ 2/9

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Bangladesh Bank - Assistant Director - 2012

A. 15
B. 40
C. 25
D. 20

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Answer: Option D

Explanation:

Let, the two numbers are 2P and 3P

2P+3P = 100

5P = 100

P = 20

So, the two numbers are 40 and 60

Now, the difference is = 60-40 = 20 (Ans)

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441 . The ratio of two numbers is 7:4, if 8 is added to both the number ration becomes 13:8 what is the smaller number?

A. 40
B. 56
C. 38
D. 52

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Answer: Option A

Explanation:

Let's 7x and 4x be two number.

Now, 7x + 8:4x + 8 = 13:8

Or, 52x + 104 = 56x + 64

Or, 56x - 52x = 104 - 64

Or, 4x = 40

Or, x = 10

So small number is 4x = 4×10 = 40

Or, x

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

A. 78
B. 80
C. 91
D. 114

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Answer: Option A

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

A. 10
B. 12
C. 15
D. 8
E. 9

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Answer: Option A

Explanation:

Hints: এই গণিতটি করতে প্রথম থেকে rent add করে যেতে হবে এবং কখন 1300। হয় তা দেখতে হবে।

অথবা, option এর পাঁচটি উত্তর ব্যবহার করে দেখতে হবে।

যদি, 10। দিন চিন্তা করি, খরচ = 50 + 50 × 3 + 100 × 5 + 300 × 2 = 1300

তাহলে প্রথমটি সঠিক উত্তর

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444 . The respective ratio between the speed of a car , a train , and a bus is 5 : 9 : 4 . The average speed of the car, bus and train is 72 km / hr together . what is the average speed of the car and the train together?

A. 82 km /hr
B. 72 km / hr
C. 67 kms /er
D. 84 km / hr

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Answer: Option D

Explanation:

Let the speeds of the car, train and bus be 5x, 9x and 4x km/hr respectively.
Average speed = (5x + 9x + 4x)/3 = 18x /3 = 6x km/hr.
Also, 6x = 72 = > x = 12 km/hr
Therefore, the average speed of the car and train together is = ( 5x + 9x)/2 = 7x = 7 x 12 = 84 km/hr.

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Sonali- Rupali- Bangladesh Krishi- Rajshahi krishi unnayn-Investment Corporation of Bangladesh | 30.11.2018

A. 82
B. 72
C. 67
D. 84

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Answer: Option D

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

A. 32.2%
B. 12.1%
C. 33.3%
D. 48.3%
E. None of them

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Answer: Option C

Explanation:

20 - 15 = 5 item
So,the percentage profit earned is 5/15x100 = 33.3%

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Bangladesh Bank - Assistant Director - 2012

A. 20%
B. 15%
C. 10%
D. 12%
E. 25%

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Answer: Option E

Explanation:

purchase unit 10- selling 8= profit unit 2

2/8*100=25%.

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Bangladesh Bank - Assistant Director - 2008

A. Tk. 240
B. Tk. 220
C. Tk. 200
D. Tk. 250

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Answer: Option C

Explanation:

Equivalent Discount,
= (A + B) - AB/100
= (10 + 5) - (10 × 5)/100
= 14.5%

Let MP = X
Now,
X - 14.5% of X = 171(Selling Price)
0.855X = 171
X = 200
Hence, MP = Tk. 200
Going through options,
200(MP) = = 10%(disc.) ⇒ 180 = = 5%(disc.) ⇒ 171(CP)

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অফিসার (ক্যাশ ) - Sonali | Rupali | BD Krishi | Rajshahi Krishi Unnayn | Investment Corporation Of Bangladesh - ২৯. ০৩.২০১৯

A. -5 < x < 7/4
B. x ≤ -5 and x ≥ 7/4
C. -7/4 < x < 5
D. x > 5 and x < -7/4
E. None of these

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Answer: Option E

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450 . The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child ?

A. 3
B. 4
C. 5
D. 6
E. None of them

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Answer: Option B

Explanation:

Let the age of the youngest child be x years
Then x+(x+3)+(x+6)+(x+9)+(x+12)=50
⇒5x+30=50⇒5x=20⇒x=4
∴ Age of the youngest child is 4 years.

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Bangladesh Bank - Assistant Director - 2012

436 . The radious of the earth is 4 times that of the moon. How many times the surface area of the moon is to that of the earth?

437 . The ratio between the perimeter and the breadth of a rectangle is 5 :1 . If the area of the rectangle is 216 cm2. what is the lenth of the rectangle?

438 . The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

439 . The ratio of the number of red balls , to yellow balls , to green balls in an urn is 2 : 3 : 4 . What is the probability that a ball chosen at random from the urn is a red ball ?

440 . The ratio of two number is 2:3 The sum of the number is 100. The diffrence between two numbers is-

441 . The ratio of two numbers is 7:4, if 8 is added to both the number ration becomes 13:8 what is the smaller number?

442 . The ration of male student of female students ina class is 13 t0 19. If there are 224 people in the class, including one teacher. One administrator and thirty evaluations. How many people in the class are male students?

443 . The rent of a guest house was Tk. 50 per day for first three days, Tk. 100 per day for the next 5 days and Tk. 300 per day for other days. The registration fee in the beginning is Tk. 50. If one has to pay Tk. 1300, for how many days he availed of this facility?

444 . The respective ratio between the speed of a car , a train , and a bus is 5 : 9 : 4 . The average speed of the car, bus and train is 72 km / hr together . what is the average speed of the car and the train together?

445 . The respective ratio between the speed of a speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?

446 . The selling price of 15 items equals the cost of 20 items. What is the percentage profit earned by the seller ?

447 . The selling price of 8 apples is equal to the purchase price of 10 apples? What is the profit margin?

448 . The selling price of an article after giving two successive discounts of 10% and 5% on the marked price is TK. 171 . What is the marked price ?

449 . The solution set of the inequality (2x + 1) < 9(4 - x) is--

450 . The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child ?

Let the age of the youngest child be x years
Then x+(x+3)+(x+6)+(x+9)+(x+12)=50
⇒5x+30=50⇒5x=20⇒x=4
∴ Age of the youngest child is 4 years.

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

436 . The radious of the earth is 4 times that of the moon. How many times the surface area of the moon is to that of the earth?

437 . The ratio between the perimeter and the breadth of a rectangle is 5 :1 . If the area of the rectangle is 216 cm2. what is the lenth of the rectangle?

438 . The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

439 . The ratio of the number of red balls , to yellow balls , to green balls in an urn is 2 : 3 : 4 . What is the probability that a ball chosen at random from the urn is a red ball ?

440 . The ratio of two number is 2:3 The sum of the number is 100. The diffrence between two numbers is-

441 . The ratio of two numbers is 7:4, if 8 is added to both the number ration becomes 13:8 what is the smaller number?

442 . The ration of male student of female students ina class is 13 t0 19. If there are 224 people in the class, including one teacher. One administrator and thirty evaluations. How many people in the class are male students?

443 . The rent of a guest house was Tk. 50 per day for first three days, Tk. 100 per day for the next 5 days and Tk. 300 per day for other days. The registration fee in the beginning is Tk. 50. If one has to pay Tk. 1300, for how many days he availed of this facility?

444 . The respective ratio between the speed of a car , a train , and a bus is 5 : 9 : 4 . The average speed of the car, bus and train is 72 km / hr together . what is the average speed of the car and the train together?

445 . The respective ratio between the speed of a speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?

446 . The selling price of 15 items equals the cost of 20 items. What is the percentage profit earned by the seller ?

447 . The selling price of 8 apples is equal to the purchase price of 10 apples? What is the profit margin?

448 . The selling price of an article after giving two successive discounts of 10% and 5% on the marked price is TK. 171 . What is the marked price ?

449 . The solution set of the inequality (2x + 1) < 9(4 - x) is--

450 . The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child ?

Let the age of the youngest child be x years Then x+(x+3)+(x+6)+(x+9)+(x+12)=50 ⇒5x+30=50⇒5x=20⇒x=4 ∴ Age of the youngest child is 4 years.

Let the age of the youngest child be x years
Then x+(x+3)+(x+6)+(x+9)+(x+12)=50
⇒5x+30=50⇒5x=20⇒x=4
∴ Age of the youngest child is 4 years.