2896 . The current birth rate per thousand is 32, where as corresponding death rate is 11 per thousand. The net growth in terms of population increase in percent is given by--

A. 21%
B. 2.1%
C. 0.021%
D. 0.0021%

View Answer	Favorite Question

Answer: Option B

Explanation:

2897 . The daily rate for a hotel room that sleeps 4 people is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk 210 for the room, then what is the value of X?

A. 60
B. 120
C. 80
D. 240

View Answer	Favorite Question

Answer: Option B

Explanation:

সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

A. Monday
B. Tuesday
C. Wednesday
D. Thursday

View Answer	Favorite Question

Answer: Option A

Explanation:

Four days before Monday is Thursday, simply because four days after Thursday is Monday. Besides, day after the day after tomorrow is Thursday only if present day is Monday.

Bangladesh bank - officer ( general) - 27.04.2018

A. 13
B. 11
C. 8
D. 9

View Answer	Favorite Question

Answer: Option D

Explanation:

ধরি,

সংখ্যা দুটি x ও y যেখানে x > y

x - y = 5

x2 - y2 = 65

( x + y) ( x - y) = 65

( x + y) 5 = 65

x + y = 65/5

x + y = 13

বড় সংখ্যাটি = ( x + y) + ( x - y) / 2 = 13 + 5/2 = 9

Assistant Director (General) 06.07.18

A. 11/18
B. 13/18
C. 15/18
D. 16/18

View Answer	Favorite Question

Answer: Option A

Explanation:

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 99 meters
B. 198 meters
C. 63 meters
D. 136 meters

View Answer	Favorite Question

Answer: Option B

Explanation:

2902 . The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?

A. 200
B. 250
C. 300
D. 350

View Answer	Favorite Question

Answer: Option B

Explanation:

Given :

The diameter of the driving wheel = 140 cm

Speed of a bus = 66 km/hr

Concept Used:

Circumference of a circle = 2πr

Number of revolutions of a wheel (N) = D/d

d = Distance traveled by the wheel in 1 revolution

Calculation:

Distance travelled by bus in 1 hour = 66km = 6600 meter

Distance travelled by bus in 1 minute = (66000)/60 = 1100m

Distance travelled by a wheel in 1 revolution = Circumference = 2πr

Put 2r = 140 cm , 1 m = 100 cm , π =22/7

Therefore,

Distance traveled by a wheel in 1 revolution = (22/7) × (140/100)

Distance traveled by a wheel 1 revolution = 4.40 m

Now, using the above formula

N × 4.4 = 100

N = 250

∴ The number of revolutions per minute is 250.

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

A. 75
B. 100
C. 125
D. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

Let the number be ‘X’

According to question,

X - (3/5 )X = 50

or, X (1 - 3/5) = 50

or, X × 2/5 = 50

or, X = 50 × 5/2

∴ X = 125 (ans)

পূবালী ব্যাংক লিমিটেড || প্রবেশনারি অফিসার (30-09-2023) || 2023

A. 12.75
B. 85
C. 204
D. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Let the number be x

Then, x - 2x/5 = 510

(5x - 2x) /5 = 510

3x = 510×5

x = 850

So, 10% of 850 = 85

2905 . The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two-digits of that number?

A. 3
B. 4
C. 6
D. 9
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Let the two-digit number be 10x+y, where x is the digit in the tens place and y is the digit in the units place.

When the digits are interchanged, the number becomes 10y+x.

According to the given information, the difference between the two-digit number and the number obtained by interchanging the positions of its digits is 36. Mathematically, this can be represented as:

(10x+y)−(10y+x)=36

Simplifying the equation:

10x+y−10y−x=36 9x−9y=36 x−y=4

So, the difference between the two digits of the number is 4.

2906 . The difference between the compound interest and simple interest on a certain amount of money at 5% per annum for 2 years is Tk. 15. Find the principal amount.

A. Tk. 4,500
B. Tk. 7,500
C. Tk. 5,000
D. Tk. 6,000

View Answer	Favorite Question

Answer: Option D

Explanation:

2907 . The difference between the cost price and sale price of an article is Tk. 240. If the profit is 20%, the selling price is:

A. Tk. 1240
B. Tk. 1400
C. Tk. 1600
D. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Hints: ধরি cost price x তাহলে 20% profit এ sell price হবে

x + x এর 20%

= x + 0.2x

= 1.2x

1.2x - 1x = 240

.2x = 240

x = 1200

Selling price = 1200 + 240 = 1440

2908 . The difference between the length and the breadth of a blackboard is 8 cm. If the breadth is decreased by 4 cm and the length is increased by 7 cm the areas remains the same. Find the dimensions of the blackboard?

A. 30,22
B. 28,20
C. 34,26
D. 56,48

View Answer	Favorite Question

Answer: Option B

Explanation:

2909 . The difference between the local value and the face value of 7 in the numberal 32675149 is-

A. 75142
B. 64851
C. 5149
D. 69993

View Answer	Favorite Question

Answer: Option D

Explanation:

The local value of 7 in the numeral 32675149 is 70000 because 7 is in the ten thousandths place.

The face value of 7 is 7 itself.

The difference between the local value and the face value of 7 is 70000 - 7 = 69993.

Therefore, the answer is 69993

পূবালী ব্যাংক লিমিটেড || সিনিয়র অফিসার (30-09-2023) || 2023

A. 1
C. 3
D. 2

View Answer	Favorite Question

Answer: Option A

Explanation:

Hints:

32 বা (2)5 এর উৎপাদক সংখ্যা = ( 5 + 1) = 6

64 বা ( 2)6 এর উৎপাদক সংখ্যা = ( 6 + 1) = 7

উৎপাদক সংখ্যর পার্থক্য = ( 7 - 6 ) = 1

2896 . The current birth rate per thousand is 32, where as corresponding death rate is 11 per thousand. The net growth in terms of population increase in percent is given by--

2897 . The daily rate for a hotel room that sleeps 4 people is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk 210 for the room, then what is the value of X?

2898 . The day after the day after tomorrow is 4 days before Moday . What day is it today?

2899 . The defference between two numbers is 5 and the difference between their squares is 65 . What is the larger number ?

2900 . The denominator of a fraction is 5 more than the numerator. If the numerator as well as the denominator is increased by 3, the fraction becomes 5/9. The original fraction is

2901 . The diameter of a wheel is 63 cm. Distance traveled by the wheel in 100 revolutions is--

2902 . The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?

2903 . The difference between a number and its three fifth is 50. What is the number?

2904 . The difference between a number and its two-fifth is 510. What is 10 percent of that number?

2905 . The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two-digits of that number?

2906 . The difference between the compound interest and simple interest on a certain amount of money at 5% per annum for 2 years is Tk. 15. Find the principal amount.

2907 . The difference between the cost price and sale price of an article is Tk. 240. If the profit is 20%, the selling price is:

2908 . The difference between the length and the breadth of a blackboard is 8 cm. If the breadth is decreased by 4 cm and the length is increased by 7 cm the areas remains the same. Find the dimensions of the blackboard?

2909 . The difference between the local value and the face value of 7 in the numberal 32675149 is-

2910 . The difference between the number factors of 32 & 64 is:

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক