6406 . A trapezium has a total area of 25 square feet. If height of this trapezium is 2 feet and one of the two parallel sides is one foot longer than the other then, what is the length of the longer sode?

A. 10 feet
B. 12 feet
C. 13 feet
D. 25 feet

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Answer: Option C

Explanation:

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

A. 55 miles/hours
B. 60 miles/hours
C. 75 miles/hours
D. 65 miles/hours

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Answer: Option C

Explanation:

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

A. 2 : 3
B. 2 : 5
C. 5 : 2
D. 3 : 2
E. None

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Answer: Option D

Explanation:

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

A. 70m
B. 80m
C. 90m
D. 100m

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Answer: Option C

Explanation:

Train length + 162m pass in 18 seconds

Train length + 120m pass in 15 seconds

( - ) So, 42 m passes in 3 seconds

In 3 seconds it passes 42 m

In 1 seconds it passes = 42/3 m = 14m

Now, in 15 seconds it passes = ( 14×15) m = 210m

Train length + 120m = 210m

Train length = ( 210 - 120)m = 90m.

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

A. 400m
B. 600m
C. 200m
D. 800m

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Answer: Option C

Explanation:

Let L be the length of the train, and let P be the length of the pole. We're given that the train takes 10 seconds to cross the pole and 20 seconds to cross a platform of length 200 meters.

When the train crosses the pole, it covers its own length, so we can write:

L = 10 * Train's Speed

When the train crosses the platform, it covers its own length plus the length of the platform, which is 200 meters, so we can write:

L + 200 = 20 * Train's Speed

Now, we can solve this system of equations. First, isolate Train's Speed in the first equation:

Train's Speed = L / 10

Now, substitute this expression for Train's Speed into the second equation:

L + 200 = 20 * (L / 10)

Simplify:

L + 200 = 2L

Now, subtract L from both sides:

200 = L

So, the length of the train (L) is 200 meters. Therefore, the length of the train is 200 meters.

সহকারী পরিচালক(AD) -12.11.2021

A. 78.4
B. 79.2
C. 64
D. 81.2

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Answer: Option B

Explanation:

ঢাকা ইলেকট্রিক সাপ্লাই কোম্পানি ।। Assistant Engineer (20-05-2023)

A. 0.38160 rad or 18.13 °
B. 0.2816 rad ot 16.13 °
C. 0.2844 rad or 16.13 °
D. 0.2916 rad or 17.130 °

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Answer: Option B

Explanation:

সিকিউরিটি প্রিন্টিং কর্পোরেশন বাংলাদেশ | সহকারী ব্যবস্থাপক- 26-11-2021

A. 20
B. 24
C. 25
D. 30

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Answer: Option D

Explanation:

বাংলাদেশ তেল- গ্যাস ও খনিজসম্পদ কর্পোরেশন (পেট্রোবাংলা) || সহকারী ব্যবস্থাপক (22-11-2024) || 2024

A. 10%
B. 10.5%
C. 11%
D. 12.5%

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Answer: Option A

Explanation:

As per the ques,

10-x-(10×x)/100= -1(loss)

Or, x=10

So, he allowed a discount of 10%

(ans)

বাখরাবাদ গ্যাস ফিল্ড লি. || সহকারী ব্যবস্থাপক/সহকারী কর্মকর্তা (16-10-2021)

A. 6
B. ৪
C. 12
D. 24

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Answer: Option C

Explanation:

A. 50 liters
B. 100 liters
C. 150 liters
D. 200 liters
E. None

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Answer: Option B

Explanation:

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

A. 20
B. 30
C. 40
D. 60

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Answer: Option D

Explanation:

Let's call the capacity of the tank "C" liters. Initially, the tank is 40% full of water, which means it contains 0.4C liters of water. When 9 liters of water are removed, it becomes 1/4 full, which means it contains (1/4)C liters of water. We can set up an equation using this information: 0.4C - 9 = (1/4)C Now, let's solve for C: 0.4C - 9 = (1/4)C Multiply both sides of the equation by 4 to eliminate fractions: 1.6C - 36 = C Subtract C from both sides: 0.6C - 36 = 0 Now, add 36 to both sides: 0.6C = 36 Finally, divide by 0.6 to find the capacity of the tank: C = 36 / 0.6 = 60 So, the capacity of the tank is 60 liters.

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

A. 3%
B. 4%
C. 5%
D. 6%

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Answer: Option D

Explanation:

Hints: Simple interest, I = Pnr (15500 - 12500) = 12500 × 4 × r r = 3/50 rate = 3/50 × 100% = 6 %

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

A. 10
B. 20
C. 40
D. 73

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Answer: Option C

Explanation:

নম্বর বেশি=83-63=20 প্রশ্নমতে, 0.5 অংশ বৃদ্ধি =20 1 অংশ বৃদ্ধি = \frac{20}{0.5} =40 ছাত্র= ছাত্রীর সংখ্যা=40

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

A. 3
B. 4
C. 5
D. 6

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Answer: Option C

Explanation:

Hints: As their profit is equal at the end of the year, their ratio is equal to their capital ratio oppositly

Their capital ratio is = 21000 : 36000 = 21 : 36 = 7 : 12

So, their time ratio is equal to 12 : 7

A has contributed for 12 months

and B contributed for 7 months

So, B has joined after 12 - 7 = 5 months.

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

6406 . A trapezium has a total area of 25 square feet. If height of this trapezium is 2 feet and one of the two parallel sides is one foot longer than the other then, what is the length of the longer sode?

6407 . A train travels 10 miles at a speed of 50 miles per hour. How fast must the train teavel on the reture trip if the round-trip travel time is 20 minutes?

6408 . A train takes 20 seconds to cross a pole. It takes 50 seconds to cross the platform. What is the ratio of the length of the platform to that of the train?

6409 . A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train-

6410 . A train takes 10 seconds to cross a pole and 20 seconds to cross a platform of length 200 m. What is the length of the train?

6411 . A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?

6412 . A train is moving at the3 rate 8 mi/h along a piece of circular track of radius 2500 ft. Through what angle does it turn in 1 min?

6413 . A trader paid Tk. 300 for a shipment of x identical pens. The trader gave two pens free of cost and sold each for Tk. 5 more than the average cost of the x pens. If the total revenue from the sale of the pens was Tk. 120 more than the cost of the shipment, how many pens were in the shipment?

6414 . A trade marked the selling price of an article at 10% above the cost price. At the time of selling, he allows certain discount and suffers a loss of 1%. He allowed a discount of

6415 . A team of 2 men and 5 women completed one-fourth of a project in 3 days. After 3 days, one woman left and one man joined the team. The newly formed team took 2 days to complete another one-fourth of the project. How many days will it take to complete the project alone?

6416 . A tank that was 10% full was emptied into a 50-litre bucket.If the oil now fills 40% of the bucket’s volume. Then what is half of the capacity of the tank in liters?

6417 . a tank 40% is full of water ,if 9 liters water is removed the tank become 1/4 full what is the capacity of tank of watera/

6418 . A sum of Tk. 12,500 amounts to Tk. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?

6419 . A student's marks were wrongly entered as 83 instead of 63. Due to the error the average marks for the class got increased by 0.5. Find the number of students in the class.

6420 . A started a business with tk 21000 and is joined afterwards by B with tk 36000. After how many months did B join if the profits at the end of the year are divided equally?

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