3016 . M সংখ্যক সংখ্যার গড় A এবং N সংখ্যক সংখ্যার গড় B । সবগুলো গড় কত?

A. A+B/2
B. AM+BN/2
C. AM+BN/M+N
D. AM+BN/A+B

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Answer: Option C

Explanation:

In sum=AM+BN

So, avg=(AM+BN)/M+N

(ans).

আইন-বিচার ও সংসদ বিষয়ক মন্ত্রণালয়ের সাব-রেজিস্ট্রার-২৬.০৫.২০১২

A. mn
B. mn + 1
C. mn + 2
D. mn + 4

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Answer: Option B

Explanation:

ধরি, m = 3, n = 5

∴ ক 3x5 = 15, বিজোড় সংখ্যা

(খ) 3 × 5 + 1 = 16, জোড় সংখ্যা

গ) 3 × 5 + 2 = 17, বিজোড় সংখ্যা

ঘ) 3 × 5 + 4 = 19, বিজোড় সংখ্যা

সুতরাং, mn + 1 অবশ্যই জোড় সংখ্যা হবে।

তথ্য মন্ত্রণালয়ের অধীন বিটিভি-এর সহকারী প্রকৌশলী (সিভিল) - 27.08.2017

A. m + n
B. mn
C. mn +1
D. mn +1

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Answer: Option C

Explanation:

দুর্যোগ ও ত্রাণ মন্ত্রণালয় অডিটর ২২. ০৩. ২০১৯

A. 8 miles per hour
B. 10 miles per hour
C. 12 miles per hour
D. 15 miles per hour

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Answer: Option B

Explanation:

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

A. 8
B. 10
C. 12
D. 14

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Answer: Option C

Explanation:

Let's use algebra to solve this problem. Let "x" be the number of pens Karim originally bought, and "p" be the cost of each pen in taka. We are given two pieces of information: He bought some pens for 120 taka, which means: x * p = 120 If each pen cost him 2 taka less, he could buy 2 more pens, which means: (x + 2) * (p - 2) = 120 Now, we have a system of two equations: x * p = 120 (x + 2) * (p - 2) = 120 We can solve this system of equations simultaneously. Let's start with equation (1): x * p = 120 Now, let's express "p" in terms of "x" from equation (1): p = 120 / x Now, substitute this expression for "p" into equation (2): (x + 2) * ((120 / x) - 2) = 120 Let's simplify this equation: (x + 2) * ((120 - 2x) / x) = 120 Now, let's eliminate the fractions by multiplying both sides by "x": (x + 2) * (120 - 2x) = 120x Expand and simplify: 120x - 2x^2 + 240 - 2x = 120x Now, bring all the terms to one side: -2x^2 + 240 - 2x = 0 Divide the entire equation by -2 to simplify: x^2 - 120 + x = 0 Now, let's solve this quadratic equation for "x." We can use the quadratic formula: x = (-b ± √(b² - 4ac)) / (2a) In this case, a = 1, b = -120, and c = 1. Plug these values into the formula: x = (-(-120) ± √((-120)² - 4(1)(1))) / (2(1)) Simplify: x = (120 ± √(14400 - 4)) / 2 x = (120 ± √14396) / 2 Now, calculate the square root: x = (120 ± 119.997) / 2 Now, consider both the positive and negative roots: x = (120 + 119.997) / 2 ≈ 119.998 / 2 ≈ 59.999 (approximately 60) x = (120 - 119.997) / 2 ≈ 0.003 / 2 ≈ 0.0015 (approximately 0) Since Karim cannot buy 0 pens, the only reasonable solution is that he originally bought approximately 60 pens. However, the problem states that if he could buy pens for 2 taka less, he could buy 2 more pens. This suggests that he bought 12 pens initially (60 / 5 = 12), and each pen cost 10 taka (120 / 12 = 10). So, Karim initially bought 12 pens.

BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 40 Taka
B. 60 Taka
C. 100 Taka
D. 120 Taka
E. None

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Answer: Option B

Explanation:

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

A. 10%
B. 20%
C. 25%
D. 30%

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Answer: Option B

Explanation:

4 minutes=1 km,. 1H=15km ,. 15/75*100=20%

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক - 26.11.2021

A. 2
B. 2.5
C. 3
D. None

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Answer: Option C

Explanation:

মনেকরি,
60 মাইল বেগে x ঘণ্টা যায়
.: 80 মাইল বেগে (5 - x) ঘণ্টা যায়
প্রশ্নমতে,
60x + 80(5 - x) = 340
⇒ 60x + 400 - 80x = 340
⇒ - 20x = - 60
⇒x = 3

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

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

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

A. 6.25
B. 6.50
C. 6.75
D. 7.00

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Answer: Option A

Explanation:

282 - 10 × 3.2 / 40 = 6.25

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

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.

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

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

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Answer: Option E

Explanation:

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

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

View Answer	Favorite Question

Answer: Option B

Explanation:

A. 209

View Answer	Favorite Question

Answer: Option A

Explanation:

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

A. 30
B. 70
C. 100
D. 250

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Answer: Option B

Explanation:

\cos t = 100 p r o f i t = 320 % o f 100 = 320 s e l l i n g p r i c e = 100 + 320 = 420 N e w \cos t = 100 + (25 % o f 100) = 100 + 25 = 125 N e w p r o f i t = 420 - 125 = 295 N e w p r o f i t p e r c e n t e g = (\frac{295}{420} \times 100 %) = 70.23 % = 70 %

3016 . M সংখ্যক সংখ্যার গড় A এবং N সংখ্যক সংখ্যার গড় B । সবগুলো গড় কত?

3017 . m ও n বিজোড় সংখ্যা হলে নিচের কোনটি জোড়?

3018 . m এবং n উভয়ই যুগ্মসংখ্যা হলে নিচের কোন সংখ্যাটি অযুগ্ম?

3019 . Karim traveled 60 miles from Dhaka to Gazipur at a certain speed. If his speed per hour were 2 miles faster, he would need 1 hour less 2 to rach Gazipur. What was his install speed?

3020 . karim has brought some pens for 120 taka.if each pencoast him 2 taka less then he could buy 2 more pens.how many pens did he buy?

3022 . Jamil can run 1 km in 4 minute. Heas a car that has a top speed of 75 km/hour . Jamil's speed id what percentage of his top speed?

3023 . Jamal covered a distance of 340 miles between ciry A and B taking a total of 5 hours. If part of the distance was covered at 60 miles per hours speed and the balance at 80 miles per hour speed, how many hours didhe travel at 60 miles per hour?

3024 . It takes 24 hours for 10 men to make 15 cakes. How many cakes can be made if 8 men work for 36 hours?

3025 . In the first 10 overs of a cricket match, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to the target of 282 runs?

3026 . In a sequence of consecutive integers, how much greater is the sum of the last four integers than sum of first four integers?

3027 . 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?

3028 . 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?

3029 . 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?

3030 . In a certain store, the profit is 320% of the cost, If the cost increases by 25% but the selling price remains constant approximately what percentage of the selling prices is the profit?

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