3661 . 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

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3662 . 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).

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3663 . 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.

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3664 . 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

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3665 . 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

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3666 . What is the number of primes that are divisible by 3?

A. 2
B. infinite
C. 1

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Answer: Option C

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3667 . 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

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Jamuna Bank Ltd - Probationary Officer - 2009

A. 20%
B. 25%
C. 30%
D. 10%
E. None of them

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Answer: Option A

Explanation:

In 5 years, capital will be 200 tk

so, the interest = (200 - 100) = 100tk

we know, i = pnr

or, r = i/pn

or, r = 100/(100*5)

∴r = 1/5

the rae of simple interest = 1/5 * 100% = 20%

ans: 20%

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Sonali- Janata- Agrani &amp- Rupali Bank Ltd. Senior Officer Recruitment 14.03.2008

A. 1320
B. 1100
C. 1050
D. 1200

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Answer: Option D

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3670 . What is the probability of getting a sum of six if two dices are thrown at once?

A. 5/36
B. 7/36
C. 2/36
D. 1/36

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Answer: Option A

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3671 . what is the probability that an integer selected at random from those between 10 and 100 inclusive is a multiple of 5 or 9?

A. $\frac{27}{89}$
B. $\frac{20}{91}$
C. $\frac{27}{91}$
D. $\frac{23}{89}$

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Answer: Option C

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Assistant Director (General) 06.07.18

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

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Answer: Option B

Explanation:

Total integers; 20
even = odd = 10
Since odd x odd = odd and since half the integers 1 to 20 are odd, the probability of selecting two odd integers is 1/2 x 1/2 = 1/4.

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3673 . What is the product of (6a2b3c4) and (3a3b4c)?

A. 9a5b7c4
B. 9a5b7c5
C. 18a5b7c5
D. 18a5b7c4

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Answer: Option C

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3674 . What is the product of all the numbers in the dial of a telephone?

A. 1,58,480
B. 1,59,450
C. 1,59,480
D. 1,59,400
E. None of these

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Answer: Option E

Explanation:

0 (zero) is included in the dial, and product of any number and zero is zero.

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3675 . What is the product of the odd integers between - 8 and 8?

A. 11025
B. 5005
D. 10050

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Answer: Option A

Explanation:

- 8 থেকে 8 পর্যন্ত বিজোড় স্বাভাবিক সংখ্যাগুলো হলো - - 7, - 5, - 3, - 1,1,3,5,7। সুতরাং এদের গুণফল = (−7)×(−5)×(−3)×(−1)×1×3×5×7-7×-5×-3×-1×1×3×5×7 = 11025

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3661 . What is the next number in the series? 5, 3, 1, 7, 3, 2, 9, 5, ...

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3662 . What is the next number in the series? 8, 11, 17, 24, 29, 53, 78, ....

3663 . What is the number of divisor of 1008?

3664 . What is the number of integers between 101 and 199 which are exactly divisible by 5 or 7?

3665 . What is the number of integers between 101 and 199 which exactly divisible by 5 or 7?

3666 . What is the number of primes that are divisible by 3?

3667 . What is the original price of pack of milk powder which Zahid has bought for taka 100, after receiving a discount of 20%?

3668 . What is the percentage to simple interest if the capital of 100 is doubled in 5 years?

3669 . What is the princepal amount which earns Tk.132 as compound interest for the second year at 10% per annum?

3670 . What is the probability of getting a sum of six if two dices are thrown at once?

3672 . What is the probability that product of two integers (not necessarily different integers ) randomly selected from the numbers 1 to 20, inclusive , is odd ?

3673 . What is the product of (6a2b3c4) and (3a3b4c)?

3674 . What is the product of all the numbers in the dial of a telephone?

3675 . What is the product of the odd integers between - 8 and 8?

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