6916 . In how many ways can 5 people from a group of 6 people be seated around a circle table?

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. 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. 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

6919 . In an acute angled traingle ABC ,if sin 2 (A + B - C) =1 and tan ( B + C-A)= $\sqrt{3},$ then the value of angle B is

A. 52%
B. 60=0%
C. 30%
D. 67%

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Answer: Option A

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

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. -2
C. 2
D. 5

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Answer: Option B

Explanation:

All the numbers are -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8. Sum of them= 0. Average is also 0.

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বাংলাদেশ সেতু কর্তৃপক্ষ (সহকারী সাব-ইঞ্জিনিয়ার) 18-12-2020

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

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Answer: Option D

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সাধারণ বীমা কর্পোরেশন || সহকারী ব্যবস্থাপক (08-11-2024) || 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. 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. 3.32cm.
B. 3.52cm.
C. 3.62cm.
D. 3.72cm.

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Answer: Option A

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তিতাস গ্যাস ট্রান্সমিসন এন্ড ডিস্ট্রিবিউশন কোম্পানী লিমিটেড (TGTDCL) || সহকারী প্রকৌশলী (EEE) (24-05-2024) || 2024

6927 . In a memory-mapped $\frac{I}{O}$ system, which one is not present?

A. LDA
B. IN
C. ADD
D. OUT

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Answer: Option A

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বাংলাদেশ টেলিযোগাযোগ নিয়ন্ত্রণ কমিশন (উপ-সহকারী পরিচালক) 19-02-2021

A. 1440
B. 1800
C. 3600
D. None

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Answer: Option B

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তিতাস গ্যাস ট্রান্সমিশন অ্যান্ড ডিস্ট্রিবিউসন কো. লি.-সহকারী ব্যবস্থাপক-08-10-2021

A. 1/8
B. 2/7
C. 1/9
D. 4/11

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Answer: Option B

Explanation:

In Leap Year, There are 366 days, 366 days = 52 weeks +2days These 2 days can be MT, TW, WTh, ThF, FSa, SaS, SM n(S)=7 Event , E: Getting Tuesday n(E)=2 Hence P(E)=n(E) / n(S)=2/7 Hence the probability of 53 Tuesdays =2/7

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বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড || সহকারী প্রকৌশলী (Civil/EEE/Mechanical) (23-02-2024) || 2024

A. 209

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Answer: Option A

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Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

6916 . In how many ways can 5 people from a group of 6 people be seated around a circle table?

6917 . In how many different orders can 8 different colors of flowers be arranged in a staight line?

6918 . 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?

6920 . 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?

6921 . In a set, there are 17 consecutive integers with a maximum value of 8, what is the average of this set?

6922 . In a sequence of consecutive integers, how much greater is the sum of the last four integers than sum of first four integers?

6923 . 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?

6924 . 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?

6925 . In a room of 36 people, 20 players play chess while 28 players play poker. How many players play both?

6926 . In a right angled triangle, the length of perpendicular and base are 1.8 cm and 2.5 cm respectively, then find its hypotenuse.

6928 . In a market suvey 20% respondents opted for product A whereas 60% opted for product B. the remaining individuals were not certain. If the difference in number between those who opted for product B and those who were uncertain was 720 . How many individuals were covered in the survey?

6929 . In a leap year what is the probability that there are 53 Tuesday?

6930 . In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?

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