3856 . Which one of the following is the next number in the series : 7, 7, 14, 42, 168-----?

A. 336
B. 504
C. 672
D. 840
E. None of these

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Answer: Option D

Explanation:

7  ×  1  =  7;7  ×  2  =  14; 14  ×  3  =  42; 42  ×  4  =  168; 168  ×  5  =  840

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3857 . Which one of the following numbers can be removed from the set S = (0, 2, 4, 5, 9) without changing the average?

A. 5
B. 9
C. 4
D. 2

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Answer: Option C

Explanation:

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SBAC Bank PLC || Trainee Junior Officer (28-09-2024) || 2024

B. 2
C. 4
D. 5

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Answer: Option C

Explanation:

The average of the elements in the original set S is:

0+2+4+5+95=205=4

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সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. 181560
B. 331145
C. 2033550
D. 202860

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Answer: Option C

Explanation:

181560/45=4034.66

331145/45=7358.77

2033550/45=45190

202860/45=4508

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3860 . Which one of the following nunbers can be removed from the set S = {0, 2, 4 ,5 9} without changing the average of set S?

B. 2
C. 4
D. 5

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Answer: Option C

Explanation:

he average of the elements in the original set S is: (0 + 2 + 4 + 5 + 9)/5 = 20/5 = 4
If we remove an element that equals the average, then the average of the new set will remain unchanged. The new set after removing 4 is {0, 2, 5, 9}.
The average of the elements is, (0 + 2 + 5 + 9)/4 = 16/4 = 4

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সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021

A. GEOGRAPHY
B. GRAPH
C. OGRE
D. PHOTOGRAPHY

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Answer: Option D

Explanation:

প্রদত্ত শব্দটিতে T অনুপস্থিত কিন্তু PHOTOGRAPHY শব্দটিতে T আছে তাই এই শব্দটি গঠন সম্ভব নয়।

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Bangladesh Bank - Assistant Director - 2015

A. [46, 22, 11]
B. [44, 22, 10]
C. [42, 20, 10]
D. [40, 20, 10]

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Answer: Option D

Explanation:

[48,24,12]

24= 2×12

48= 2×24

[40,20,10]

20= 2×10

40= 2× 20

(ans)

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3863 . Whichof the ratio is the greatest?

A. 3 : 7
B. 5 : 9
C. 7 : 11
D. None

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Answer: Option C

Explanation:

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3864 . while working 7 hour a day , A alone can complete a piece of work in 6 days and B alone in 8 days . In what time would they complete it together , 8 hour a day?

A. 5 days
B. 3 days
C. 4 days
D. 3.6 days

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Answer: Option B

Explanation:

A can complete the work in 7*6 hrs = 42 hrs.
A can complete in 1 hr = 1/42 part.
B can complete the work in 7*8 hr = 56 hrs.
A&B together do in 1 hr = 1/42 + 1/56 = 7/168 = 1/24 part. So they will do in 8 hrs = 8*1/24 = 1/3 part.
Hence they need 1÷1/3 = 3 days to complete the work.

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সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. Rana
B. Liza
C. Pintu
D. Marry

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Answer: Option D

Explanation:

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3866 . who cannot be a member of a team of size 3?

A. Qazi
B. Liza
C. Nadir
D. Marry

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Answer: Option B

Explanation:

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3867 . Who is good in Baseball, Volleyball and Hockey?

A. Kamal
B. Jony
C. Jamal
D. Rony

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Answer: Option D

Explanation:

Mr. X 1 বছরের জন্য 10,000 টাকার একটি Deposit certificate কিনল, যা 6 মাস পর 8%

হার চক্রবৃদ্ধি সুদ প্রদান করে । Mr. X মোট কত টাকা সুদ পাবে তা বের করতে হবে ।

এখানে, সুদাসল, c = ?; semi annually হওয়ায়, n = 2; সময় t = 1 বছর; আসল, p = 10,000 Tk.

সুদের হার, r = 8% = 81008100

আমরাজানি, = P(1 + rn)n×tP(1 + rn)n×t

= > c = 100(1 + 82×100)2×1100(1 + 82×100)2×1

= > c = 10,000(1 + 125)210,000(1 + 125)2

= > c = 10,000(2625)210,000(2625)2

= > c = 10,000×26×2625×2510,000×26×2625×25

= > c = 10,816.

অর্থাৎ তিনি মোট সুদ পাবেন = (c - p) Tk.

= (10,816 - 10,000) Tk. = 816 টাকা ।

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3868 . who is good in Hockey , Cricket and Volleyball?

A. Kamal
B. Rony
C. Jony
D. Jamal

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Answer: Option C

Explanation:

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3869 . Who is the tallest? Omar and Osman are of the same height Babu is shorter than Bithi. Bithi is taller than Osman. Omar is shorter than Babu.

A. Omar
B. Osman
C. Babu
D. None of these

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Answer: Option C

Explanation:

The letters are just written reversibly.

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3870 . With 12.50% simple interest rate how many years are needed for a principal to get double ?

A. 8
B. 7
C. 6
D. 5

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Answer: Option A

Explanation:

Principal with simple interest, A = P(1 + n r)

or, 2P = P(1 + n x 12.5/100)

or, 2P/P = 1 + n x 12.5/100

or, n x 12.5/100 = 2 - 1

or, n x 12.5/100 = 1

or, n = 1 x 100 / 12.5 = 8 years

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3856 . Which one of the following is the next number in the series : 7, 7, 14, 42, 168-----?

3857 . Which one of the following numbers can be removed from the set S = (0, 2, 4, 5, 9) without changing the average?

3858 . which one of the following numbers can be removed from the set S ={ 0, 2, 4,5.9) without changing the average of set S ?

3859 . which one of the following numbers id completely divisible by 45?

3860 . Which one of the following nunbers can be removed from the set S = {0, 2, 4 ,5 9} without changing the average of set S?

3861 . Which one word cannot be formed from he letters of the word 'CHOREOGRAPHY' ?

3862 . Which set of numbers is like the given set [48, 24, 12]?

3863 . Whichof the ratio is the greatest?

3864 . while working 7 hour a day , A alone can complete a piece of work in 6 days and B alone in 8 days . In what time would they complete it together , 8 hour a day?

3865 . who can be a member of a team of size 5?

3866 . who cannot be a member of a team of size 3?

3867 . Who is good in Baseball, Volleyball and Hockey?

3868 . who is good in Hockey , Cricket and Volleyball?

3869 . Who is the tallest? Omar and Osman are of the same height Babu is shorter than Bithi. Bithi is taller than Osman. Omar is shorter than Babu.

3870 . With 12.50% simple interest rate how many years are needed for a principal to get double ?

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