5206 . In a room of 36 people, 20 players play chess while 28 players play poker. How many players play both?

A. 48
B. 20
C. 12
D. 28

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Answer: Option C

Explanation:

আমরা জানি,
Total = n(A) + n(B) - both + none
⇒ 36 = 20 + 28 - both + 0
⇒ 36 = 48 - both
⇒ both = 48 - 36
⇒ both = 12

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ওয়েজ আর্নার্স কল্যাণ বোর্ড || উপ সহকারী পরিচালক (22-11-2024) || 2024

A. 5%
B. 10%
C. 30%
D. 50%
E. None

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Answer: Option E

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পায়রা বন্দর কর্তৃপক্ষ (বিভিন্ন পদ) 06-11-2020

A. 49
B. 58
C. 68
D. 77
E. None

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Answer: Option D

Explanation:

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সাধারণ বীমা কর্পোরেশন || সহকারী ব্যবস্থাপক (08-11-2024) || 2024

A. 10
B. 12
C. 14
D. 16

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Answer: Option D

Explanation:

In a sequence of consecutive integers, the sum of the first four integers and the sum of the last four integers will have the same difference because they have an equal number of terms, and each term in the sum of the last four integers is greater by a fixed value compared to the corresponding term in the sum of the first four integers.

For example, consider the sequence of consecutive integers: 1, 2, 3, 4, 5, 6, 7, 8. The sum of the first four integers (1 + 2 + 3 + 4) is 10, and the sum of the last four integers (5 + 6 + 7 + 8) is 26. The difference between these two sums is 26 - 10 = 16.

So, the sum of the last four integers is 16 greater than the sum of the first four integers. Therefore, the answer is indeed 16.

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কর্ণফুলী গ্যাস ডিস্ট্রিবিউশন কোম্পানী লিমিটেড || সহকারী ব্যবস্থাপক (সাধারণ) (04-12-2021) || 2021

A. 103
B. 105
C. 107
D. 109
E. None

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Answer: Option C

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পায়রা বন্দর কর্তৃপক্ষ (বিভিন্ন পদ) 06-11-2020

A. 7,143
B. 5,286
C. 4,475
D. 3,475

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Answer: Option B

Explanation:

প্রশ্নে বলা হচ্ছে, A নামের একটি দেশে 1,000 ডলারের উপর কোনো ট্যাক্স দিতে হয় না। 1,000/ ডলারের পর 65% হারে ট্যাক্স দিতে হয়। ঐ হারে ট্যাক্স দেয়ার পর 2,500 ডলার রাখতে চাইলে সম্পদের পরিমাণ কত হতে হবে?
2,500 ডলার হাতে রাখতে হলে 1,000 ডলার প্রথমেই আলাদা করি, কারণ 1000 ডলার হলো করমুক্ত আয়।
.:. কর দিতে হয় = 2,500 - 1,000 1,500 ডলারের উপর
পরবর্তী আয়ের উপর যেহেতু 65% কর দিতে হয়। সুতরাং কর দেয়ার পর হাতে বাকি থাকে = 100 – 65 = 35%
অর্থাৎ 35% = 1,500
.:.100% =1500 * 100/*35 = 4,286 ডলার (দশমিকের পরের সংখ্যা বাদ দিয়ে)
.:. হাতে রাখতে হবে = 4,286 + 1.000 = 5,286 ডলার।

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বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (সহকারী ব্যবস্থাপক) 25-09-2020

A. 8
B. 64
C. 40, 320
D. 80, 640

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Answer: Option C

Explanation:

একটি সরল রেখায় ৪টি ভিন্ন রংয়ের ফুলকে ৪! ভাবে সাজানো যায়।
এখানে ৪! = 8 × 7 × 6x5x4x3x2 × 1
= 40320

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বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (সহকারী ব্যবস্থাপক) 25-09-2020

A. 56
B. 70
C. 120
D. 144

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Answer: Option D

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ওয়েজ আর্নার্স কল্যাণ বোর্ড || সহকারী পরিচালক (22-11-2024) || 2024

A. 32
B. 70
C. 126
D. 110

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Answer: Option B

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Bangladesh Oil- Gas and Mineral Corporation (Petrobangla) || Assistant Manager (Electrical / Electronics/Chemical/Petroleum/Petroleum & Mining/IPE/ MME/Naval Architechture/ Telecom/ Geology/Geophysics/Chemistry/Environment/Marketing) (31-05-2024) || 2024

A. 96
B. 56
C. 54
D. 36

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Answer: Option C

Explanation:

Stamps must be in an integer.

Let's say, he has x stamps of other countries

So, he has 3x Stamps of Bangladesh

So it has to be, x+3x=54 [In total]

But if we solve the equation, we can see that x=27/2, which is a fraction [not an integer]

So 54 cannot be the number of stamps. (ans)

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5216 . In set S there are four numbers. Three of the numbers are 13.29, and 41, and the fourth number is X. If the mean of the set is less than 25, what could be the value of X?

A. 13
B. 17
C. 19
D. 21

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Answer: Option A

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বাংলাদেশ সিকিউরিটিজ অ্যান্ড এক্সচেঞ্জ কমিশন(ব্যক্তিগত কর্মকর্তা) 19-06-2021 || 2021

A. 14
B. 18
C. 22
D. 26

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Answer: Option A

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

A. 20, 36, 16
B. 37, 1, 1
C. 10, 18, 8
D. 25, 10, 7
E. None

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Answer: Option A

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সাধারণ বীমা কর্পোরেশন || সহকারী ব্যবস্থাপক (08-11-2024) || 2024

A. x=0
B. x>0
C. x<0
D. x ≤ 0

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Answer: Option B

Explanation:

ঋণাত্মক সংখ্যার লগারিদম হয়না। শূন্য থেকে বড় সকল সংখ্যার লগারিদমিক মান বের করা সম্ভব

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সরকারি মাধ্যমিক বিদ্যালয় সহকারী শিক্ষক নিয়োগ পরীক্ষা-2019-(06-09-2019)

A. 18
B. 24
C. 12
D. 10

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Answer: Option A

Explanation:

10 men takes 24 hr to make = 15 cakes 1 men takes 1 hr to make = 15×24/10 18 men takes 1 hr to make = 15×24×18/10 18 men takes 36 hr to make = 15×24×18/ 36×10 =18

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C ইউনিট ব্যবসা শিক্ষা (২০২৩-২০২৪) || (09-03-2024) || চট্টগ্রাম বিশ্ববিদ্যালয়

5206 . In a room of 36 people, 20 players play chess while 28 players play poker. How many players play both?

5207 . In a school, 40% of the students are male and all the students like either math or English. If 60% of the students like math and 30% of the students are male who like English, what percentage students of the class are female students who like English?

5208 . In a school, students may bring breakfast, buy it, or may not eat breakfast. If 1/4 of the students bring breakfast, 1/7 don't eat breakfast, and 187 buy it, how many students bring breakfast?

5209 . In a sequence of consecutive integers, how much greater is the sum of the last four integers than sum of first four integers?

5210 . In a set of 10 consecutive positive integers, the sum of first 5 numbers is 510. What is the average of last 5 numbers in the series?

5211 . In country A, the first 1,000 dollar of any inheritance are untaxed. After the first 1,000 dollar, inheritances are taxed at rate of 65%. How large must an inheritance be, to the nearest dollar, in order to amount to 2,500 dollar after the inheritance tax?

5212 . In how many different orders can 8 different colors of flowers be arranged in a staight line?

5213 . In how many ways can 5 people from a group of 6 people be seated around a circle table?

5214 . In how many ways can a committee of 4 people be chosen out of 8 people?

5216 . In set S there are four numbers. Three of the numbers are 13.29, and 41, and the fourth number is X. If the mean of the set is less than 25, what could be the value of X?

5217 . In the coordinate plane, line m passes through the origin and has a slope of 3. If points (6,y) and (x,12) are on line m, then y - x = ?

5218 . In your wallet, there are Tk 500, Tk 200 and Tk 100 notes in the ratio 5: 9: 4, amounting to Tk18,800. Find the number of each note respectively.

5219 . Inx এর ক্ষেত্রে নিচের কোনটি সঠিক ?

5220 . It takes 24 hours for 10 men to make 15 cakes. How many cakes can be made if 8 men work for 36 hours?

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