3421 . What is the minimum number of chocolates that must be added to an existing stock of 966 chocolates, so that the total stock can be equally distributed among 6 ,7 , 8 or 9 persons?

A. 36
B. 42
C. 56
D. 72
E. None of these

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Answer: Option B

Explanation:

6, 7, 8, 9

L.C.M = 2×3×7×4×3 = 504

Existing stock = 966

So, minimum number of chocolates require = ( 504×2) - 966 = 42

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

৩০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।

সাবস্ক্রিপশন লিংক

3422 . what is the minimum number of oranges that must be added to the existing stock of 263 oranges so that total stock can be equally distributed among 6, 7 or 8 persons?

A. 66
B. 69
C. 73
D. 77
E. None of them

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Answer: Option C

Explanation:

6×7×8=336

So, need to add=(336-263)=73

(ans)

3423 . What is the minimum number of sweets that must be added to an existing batch of 240 sweets, so that the total batch can equally be devided among 2, 5 and 7 persons?

A. 15
B. 25
C. 40
D. 60

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Answer: Option C

Explanation:

LCM of 2, 5 and 7 are = 70

ভাজ্য = ভাজক*ভাগফল + ভাগশেষ

240 = 70*3 + 30

So, minimum number is required = 70 - 30 = 40 (Ans.)

3424 . What is the minimum number of tiles of size 16 by 24 required to from a square by placing the tiles adjacent to one another other?

A. 6
B. 8
C. 11
D. 16
E. None of these

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Answer: Option D

Explanation:

টাইলসের ক্ষেত্রফল ( 16×24) টি = 384 টি

384 সংখ্যার চেয়ে বড় পূর্ণবর্গ সংখ্যা 400

বর্গক্ষেত্রের জন্য টাইলস লাগবে ( 400 - 384) টি = 16 টি।

3425 . What is the next digit of the series 1,2,3,5,7 ---------- ?

A. 9
B. 14
C. 11
D. 16

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Answer: Option C

Explanation:

এখানে ১,২,৩,৫,৭…

২টি সংখ্যার মাঝে ব্যবধান যদি আমরা দেখি,

২-১=১, ৩-২=১

আবার ৫-৩=২, ৭-৫=২

ব্যবধান ২ গুণ করে বেড়েছে, তাই পরের সংখ্যার সাথে ৪ যোগ হবে

৭+৪=১১

Bangladesh Bank - Assistant Director - 2008

A. 18
B. 21
C. 23
D. 25

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Answer: Option D

Explanation:

ডিপ্লোমা ইন নার্সিং সায়েন্স এন্ড মিডওয়াইফারি ভর্তি পরীক্ষা ২০২০-২০২১ || নার্সিং(Nursing) ভর্তি পরীক্ষা || 2020

A. 12
B. 16
C. 25
D. 28

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Answer: Option B

Explanation:

When you multiply a whole number times itself, the resulting product is called a square number, or a perfect square or simply "a square." So 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.

Bangladesh Bank - Assistant Director - 2001

A. 34
B. 31
C. 41
D. 50
E. None of them

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Answer: Option A

Explanation:

0 + 1 = 1;1 + 1 = 2;2 + 3 = 5;3 + 5 = 8;5 + 8 = 13; 8 + 13 = 21;21 + 13 = 34

3429 . What is the next number in the series? 5, 3, 1, 7, 3, 2, 9, 5, ...

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

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Answer: Option B

Explanation:

3430 . What is the next number in the series? 8, 11, 17, 24, 29, 53, 78, ....

A. 102
B. 101
C. 75
D. 83

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Answer: Option B

Explanation:

difference between the numbers are respectively 3,6,7,5,24,25

Now, according to 6-7-5,

7-2=5, two number less than previous one

So, this must be 24-25-23 (25-2=23).

Now, 78+23=101.

(ans).

3431 . What is the number of divisor of 1008?

A. 12
B. 20
C. 30
D. 32

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Answer: Option C

Explanation:

To find the number of divisors of 1008, we can first factorize 1008 into its prime factors and then use the formula for finding the number of divisors.

Prime factorization of 1008: 1008 = 2^4 * 3^2 * 7

Now, to find the number of divisors, we use the following formula:

Number of divisors = (a + 1)(b + 1)(c + 1)...

Where a, b, c, ... are the exponents of the prime factors in the factorization.

In this case: a = 4 (the exponent of 2) b = 2 (the exponent of 3) c = 1 (the exponent of 7)

Number of divisors = (4 + 1)(2 + 1)(1 + 1) = 5 * 3 * 2 = 30

So, the number of divisors of 1008 is 30.

3432 . What is the number of integers between 101 and 199 which are exactly divisible by 5 or 7?

A. 30
B. 29
C. 32
D. 31

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Answer: Option A

Explanation:

LCM of 5 and 7 is 35

No. of integer between 101 and 199 devided by 35 is 3

No.of integer between 101 and 199 devided by 5 is 19

No of integer between 101 and 199 devided by 7 is 14

so, No.of integer between 101 and 199 divided by 5 or 7 are = 19 + 14 - 3 = 30

3433 . What is the number of integers between 101 and 199 which exactly divisible by 5 or 7?

A. 31
B. 30
C. 32
D. 35
E. None of them

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Answer: Option B

Explanation:

LCM of 5 and 7 is 35

No. of integer between 101 and 199 devided by 35 is 3

No.of integer between 101 and 199 devided by 5 is 19

No of integer between 101 and 199 devided by 7 is 14

so, No.of integer between 101 and 199 divided by 5 or 7 are = 19 + 14 - 3 = 30

3434 . What is the number of primes that are divisible by 3?

A. 2
B. infinite
C. 1

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Answer: Option C

Explanation:

3435 . What is the original price of pack of milk powder which Zahid has bought for taka 100, after receiving a discount of 20%?

A. Tk.80
B. Tk.120
C. Tk.200
D. Tk.125

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Answer: Option D

Explanation:

3421 . What is the minimum number of chocolates that must be added to an existing stock of 966 chocolates, so that the total stock can be equally distributed among 6 ,7 , 8 or 9 persons?

3422 . what is the minimum number of oranges that must be added to the existing stock of 263 oranges so that total stock can be equally distributed among 6, 7 or 8 persons?

3423 . What is the minimum number of sweets that must be added to an existing batch of 240 sweets, so that the total batch can equally be devided among 2, 5 and 7 persons?

3424 . What is the minimum number of tiles of size 16 by 24 required to from a square by placing the tiles adjacent to one another other?

3425 . What is the next digit of the series 1,2,3,5,7 ---------- ?

3426 . What is the next number in the series 1, 4, 9, 16, ....?

3427 . What is the next number in the series 1.4.9 ?

3428 . what is the next number in the series: 1 ,1 ,2 ,3 , 5, 8, 13, 21 ............. ?

3429 . What is the next number in the series? 5, 3, 1, 7, 3, 2, 9, 5, ...

3430 . What is the next number in the series? 8, 11, 17, 24, 29, 53, 78, ....

3431 . What is the number of divisor of 1008?

3432 . What is the number of integers between 101 and 199 which are exactly divisible by 5 or 7?

3433 . What is the number of integers between 101 and 199 which exactly divisible by 5 or 7?

3434 . What is the number of primes that are divisible by 3?

3435 . What is the original price of pack of milk powder which Zahid has bought for taka 100, after receiving a discount of 20%?

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