4021 . A polygon that has 10 sides is called

A. Heptagon
B. Decagon
C. Hexagon
D. Octagon

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Answer: Option B

Explanation:

A polygon with 10 sides is called decagon. While a polygon with 8 and 12 sides are octagon and Dodecagon respectively.

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4022 . A police man spots a mugger from a distance of 200 meters. As the police man starts chasing the mugger, the mugger also starts also starts running. Given that the speed of the mugger is 10 km/h and that of the police man is 12 km/h, how far would have the mugger run before he is caught?

A. 3 km
B. 4 km
C. 2 km
D. 1 km
E. None of these

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Answer: Option D

Explanation:

Lets say the mugger ran for T hours before being caught.

200 meters = 0.2 km

ATQ, 12T = 10T + 0.2

Or, 12T - 10T = 0.2

Or, T = 0.1 hour

So, he ran = 10T = 10 x 0.1 = 1 km.

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4023 . A picnic was attended by 240 persons. There were 20 more men than women and 20 more adults then children. How many men were there in the picnic?

A. 110
B. 130
C. 200
D. 240
E. 75

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Answer: Option E

Explanation:

Let, Number of women x

so, Number of men = x + 20

so, x + x + 20 = 240

বা, 2x = 220

বা, x = 110

Number of women 110

and Number of men = 110 + 20 = 130

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4024 . A picnic attracts 240 persons. There are 20 more men than women and 20 more adults than children . How many men are at this picnic?

A. 250
B. 75
C. 110
D. 200

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Answer: Option B

Explanation:

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Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

A. Tk. 3000
B. Tk. 5000
C. Tk. 7000
D. Tk. 8000

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Answer: Option D

Explanation:

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Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018

A. 20
B. 25
C. 30
D. 35

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Answer: Option B

Explanation:

Circumference of the circular path = 2/\50 = 100 /\ m This means 100 /\ m is the distance covered in 60 minutes Therefore distance covered in 15 minutes = 1/4 x 100 /\ m = 25/\ m Now distance covered in one revolution of the wheel = 2 /\(1/2) m = /\ m Therefore number of revolutions in 15 minutes = 25/\ //\ = 25 Read more on Brainly.in - https://brainly.in/question/8996103#readmore

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Sonali &amp-Janata Bank | Officer (IT)| 04.01.2019

A. Tk. 1580
B. Tk. 1180
C. Tk. 1260
D. Tk. 1225

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Answer: Option C

Explanation:

For 5% loss, buying price of watch = (1140*100)/95 = 1200 tk

For earning 5% profit, selling price should be = (1200*105)/100 = 1260 tk (Ans)

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4028 . A person's present age is two - fifth of the age of his mother. After 8 years. he will be one half of the age of his mother . What is the present age of the mother?

A. 30
B. 35
C. 40
D. 50

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Answer: Option C

Explanation:

A person's present age is two-fifth of the age of his mother. After 8 years , he will be one-half of the age of his mother . How old is the mother at present ?

Let, present age of mother = x
present age of the person or son = 2x/5

After 8 year,
mother's age = x+8
son's age = 2x/5 + 8

As per question,
2x/5 + 8 = (x+8)/2
or, (x+8)/2 - 2x/5 = 8
or, x=40

So, present age of mother = 40 years (Ans:)

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বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. Tk.400
B. Tk. 450
C. Tk. 500
D. None these

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Answer: Option D

Explanation:

Let,value of item be 100x

Custom duty=50%

value of item with custom duty =150x

Another 20% sales tax duty=150x×20%=30x

Total custom duty and sales tax= 50+30=80x

ATQ,

350/80x × 100x = 437.5

Ans: None these

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বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. 9
B. 14
C. 20
D. 6
E. 15

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Answer: Option E

Explanation:

We know, divident = quotient x divisor + remainder

So, divident = quotient x 105 + 99

Now, 105 is completely divisible by 21 yielding the quotient 5. So, we only need to divide the remainder 99 by 21 to see if any remainder remains.

Now, 99 = 4 x 21 + 15. So, 15 will be remained as a remainder if the number is divided by 21 instead of 105.

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4031 . A number is multiplied by 4 and then the product is divided by 100. This same result can be obtained if the original number is divided by--

A. 0.04
B. 0.25
C. 0.40
D. 2.5
E. 25

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Answer: Option E

Explanation:

Truncate - কেটে ছোট করা, wind up - শেষ করা । বাক্যের অর্থ – যখন আমরা দেখলাম, আমাদের সময় প্রায় শেষ, প্রত্যেককে তার পারফরম্যান্স শেষ করতে বললো ।

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Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 68
B. 43
C. 61
D. 73

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Answer: Option C

Explanation:

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

A. 82
B. 37
C. 55
D. 73
E. 91

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Answer: Option E

Explanation:

Let's use algebra to solve this problem. Let the two-digit number be represented as 10a + b, where 'a' is the tens digit and 'b' is the units digit.

We are given two conditions:

The sum of the digits is 10, so we can write the equation: a + b = 10

When 72 is subtracted from the number, the digits are interchanged. This means that 10a + b - 72 becomes 10b + a. We can write this as another equation: 10a + b - 72 = 10b + a

Now, let's solve this system of equations:

From equation 1, we can express 'b' in terms of 'a': b = 10 - a

Substitute this expression for 'b' into equation 2: 10a + (10 - a) - 72 = 10(10 - a) + a

Now, simplify and solve for 'a': 10a + 10 - a - 72 = 100 - 10a + a

Combine like terms: 9a + 10 - 72 = 100 - 9a

Subtract 10 from both sides: 9a - 62 = 100 - 9a

Add 9a to both sides: 18a - 62 = 100

Add 62 to both sides: 18a = 162

Divide by 18: a = 9

Now that we have found 'a' to be 9, we can find 'b' using the first equation: a + b = 10 9 + b = 10

Subtract 9 from both sides: b = 10 - 9 b = 1

So, the tens digit 'a' is 9, and the units digit 'b' is 1. Therefore, the two-digit number is 91.

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4034 . A motorcyclist rode to work at an average speed of 15 miles per hour and returned home along the same route at an average speed of 45 miles per hour. If his entire traveling time was 1 hour, what was the total number of miles in the round trip?

A. 30
B. 36.5
C. 45
D. 15
E. 22.5

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Answer: Option E

Explanation:

He travels 20 miles at a speed of 15 mph so he takes 20/15 = 4/3 hrs to travel one way. Since total time is 2 hrs, he must have taken 2 - 4/3 = 2/3 hrs while returning.
Speed while returning = 20/(2/3) = 30 mph

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4035 . A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are nither trucks nor diesel?

A. 165%
B. 90%
C. 65%
D. 10%
E. None of these

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Answer: Option E

Explanation:

Trucks = 30% of 300 = 90

Other Vehicles (Excluding Trucks) = 300 - 90 = 210

Diesel Vehicle = 20% of 300 = 60 (Including 15 Trucks)

Other Diesel Vehicles (Excluding Trucks) = 60 - 15 = 45

Trucks that are NOT diesel = 90 - 15 = 75

Other Vehicles that are NOT diesel Vehicles = 210 - 45 = 165

Required % = (165/300)×100 = 55%

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4021 . A polygon that has 10 sides is called

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4022 . A police man spots a mugger from a distance of 200 meters. As the police man starts chasing the mugger, the mugger also starts also starts running. Given that the speed of the mugger is 10 km/h and that of the police man is 12 km/h, how far would have the mugger run before he is caught?

4023 . A picnic was attended by 240 persons. There were 20 more men than women and 20 more adults then children. How many men were there in the picnic?

4024 . A picnic attracts 240 persons. There are 20 more men than women and 20 more adults than children . How many men are at this picnic?

4025 . A person saves Tk. 5000 in his bank account . If the bank gives 10% annual profit , how much will be his balance after 6 years?

4026 . A person rides a bicycle round a circular path of radius 50 m. The radious of the wheel of the bicycle is 50 cm. The cycle comes to the starting point for the first time in 1 hour. what is the number of revolutions of the revolutions of the wheel in 15 minutes?

4027 . A person incurs a loss of 5 % by selling a watch for Tk. 1140. At what price should the watch be sold to earn 5% profit?

4028 . A person's present age is two - fifth of the age of his mother. After 8 years. he will be one half of the age of his mother . What is the present age of the mother?

4029 . A passenger paid 50% customs duty on accompanied baggage items. He paid another 20% sales tax on the total value of the items plus the custom duty paid. The total custom duty and sales tax is Tk. 350. what is the value of the item custom duty and sales tax?

4030 . A number when divided by 105 leaves 99 as remainder. What will be the number if the number is devided by 21?

4031 . A number is multiplied by 4 and then the product is divided by 100. This same result can be obtained if the original number is divided by--

4032 . A number is as much greater than 36 as is less than 86 . Find the number.

4033 . A number consists of two digits. The sum of the digits is 10. If 72 is subtracted from the number, it's digits are interchanged. Find the number.

4034 . A motorcyclist rode to work at an average speed of 15 miles per hour and returned home along the same route at an average speed of 45 miles per hour. If his entire traveling time was 1 hour, what was the total number of miles in the round trip?

4035 . A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are nither trucks nor diesel?

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