6646 . Two Ships leave a port at the same time.Ship A sails 300 miles to the West Ship B sails 400 miles to the North.How far apart are the ships at the end of their trips?

A. 300 miles
B. 400 miles
C. 500 miles
D. 900 miles

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Answer: Option C

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6647 . Two numbers when divided by a certain divisor give remainder 35 and 30 respectively and when their sum is divided by the same divisor, the remainder is 20, then the divisor is:

A. 40
B. 45
C. 50
D. 55

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Answer: Option B

Explanation:

ধরি, সংখ্যা দুইটি যথাক্রমে x ও y এবং ভাজক a প্রশ্নমতে, \frac{x}{a} =35................... (i) \frac{y}{a} =30.......................... (i i) এবং \frac{x + y}{a} =20.......................... সেট তত্বের সূত্র অনুযায়ী, a= \frac{x}{a} + \frac{y}{a} - \frac{x + y}{a} = (35+30) -20 = 45

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বাংলাদেশ রপ্তানি প্রক্রিয়াকরণ কর্তৃপক্ষ (সহকারী ম্যানেজার) 02-04-2021

A. 30
B. 40
C. 50
D. 60

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Answer: Option C

Explanation:

ধরি, সংখ্যা দুটি 5x ও 4x 5x - 4x = 10 x = 10 বড় সংখ্যাটি = 5x = 5×10 = 50

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

A. 1 : 1
B. 2 : 3
C. 2 : 5
D. 4 : 3

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Answer: Option D

Explanation:

According the quesion, \frac{5 A}{100} + \frac{4 B}{100} = \frac{3}{2} × [\frac{6 A}{100} + \frac{8 B}{100}] ⇒5A+4B= \frac{3}{2} × [6 A + 8 B] ⇒3× [5 A + 4 B] =2× [6 A + 8 B] ⇒15A+12B=12A+16B \Rightarrow 3 A = 4 B ∴ A : B = 4 : 3

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দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 57
B. 175
C. 157
D. 157

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Answer: Option B

Explanation:

Let, the number be x

2/5 of 1/4 of 3/7 of x = 15

2/5×1/4×3/7× = 15

6x/140 = 15

6x = 15×140

6x = 2100

x = 350

Half of x is 175

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Basic bank recruitment 2018; auditor 26.01.2018 || Image 2018

6651 . Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd?

A. $\frac{1}{2}$
B. $\frac{2}{3}$
C. $\frac{3}{4}$
D. $\frac{1}{3}$

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Answer: Option A

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বাংলাদেশ রপ্তানি প্রক্রিয়াকরণ কর্তৃপক্ষ (সহকারী ম্যানেজার) 02-04-2021 || 2021

6652 . Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd?

A. $\frac{1}{2}$
B. $\frac{2}{3}$
C. $\frac{3}{4}$
D. $\frac{1}{3}$

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Answer: Option A

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

A. 17:13
B. 7:3
C. 1:3
D. 2:3

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Answer: Option A

Explanation:

ধরি, প্রথম বাইকার অতিক্রম করে = 130 km

∴ দ্বিতীয় বাইকার অতিক্রম করে = 300 - 130 = 170 km

আমরা জানি, t = d/v

এখন ধরি, প্রথমজনের গতিবেগ v1 এবং দ্বিতীয় জনের গতিবেগ v2

∴ সময় একই চলে বলে , d1/v1 = d2/v2

বা = 130/v1 = 170/v2

বা v2/v1 = 170/130 = 17/13

v2:v1 = 17:13

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

A. 23
B. 45
C. 47
D. 67

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Answer: Option D

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

A. 23
B. 45
C. 47
D. 67

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Answer: Option D

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বাংলাদেশ সিকিউরিটিজ অ্যান্ড এক্সচেঞ্জ কমিশন(সহকারী পরিচালক) 19-06-2021

A. 8 : 7 : 5
B. 56 : 28 : 17
C. 21 : 28 : 38
D. 64 : 49 : 20
E. None

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Answer: Option D

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

A. 3/20
B. 3/10
C. 2/3
D. 20/3

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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

A. 576
B. 660
C. 600
D. 720

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Answer: Option D

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6659 . There is a point in a circle. What is the probability that this point is closer to its circumference than to the center?

A. $\frac{3}{4}$

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Answer: Option A

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

A. 10, 25,13
B. 12, 21,15
C. 11, 23, 14
D. 13, 19, 16

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Answer: Option B

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বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড ।। সহকারী সচিব/সহকারী পরিচালক(প্রশাসন) (18-01-2019)

6646 . Two Ships leave a port at the same time.Ship A sails 300 miles to the West Ship B sails 400 miles to the North.How far apart are the ships at the end of their trips?

6647 . Two numbers when divided by a certain divisor give remainder 35 and 30 respectively and when their sum is divided by the same divisor, the remainder is 20, then the divisor is:

6648 . Two numbers are in the ratio 5 : 4 and their difference is 10. What is the smallest number?

6649 . Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. What is the ratio of A and B?

6650 . Two fifth of one fourth of three-seventh of a number is 15, What is the half of the number?

6653 . Two bikes start at he same time from two destination 200 km apart and traved towards each other. If they cross each other at a distance of 130 km from one of the destination, what is the ratio of their speeds?

6654 . To the nearest degree, what is the measure of the second smallest angle in a right triangle with sides 5, 12 and 13?

6655 . To the nearest degree, what is the measure of the second smallest angle in a right triangle with sides 5, 12, and 13?

6656 . Three partners shared their profit in a business in the ratio 8 : 7 : 5. They had partnership for 7 months. 5 months and 14 months respectively. What has the ratio of theit investment?

6657 . Three-fourth petrol of a reservoir is used to fill the petrol tanks of five trucks having the same storage capacity. What part of the total capacity of the petrol reservoir did each truck receive?

6658 . There will be a loss of 10%, if a chair is sold for TA. 540, At what price should the chair be sold to make a profit of 20%?

6660 . There are 48 books on 3 shelves. If 3 books from third shelf are shifted to the second there will be same number of books on first and third shelves and double the number of books on shelf . How many books were there on three shelves originally?

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