1696 . How many odd, positive divisors does 540 have?

A. 6
B. 8
C. 12
D. 15

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

1×540 = 540

2×270 = 540

3×180 = 540

4×135 = 540

5×108 = 540

6×90 = 540

9×60 = 540

10×54 = 540

12×45 = 540

15×36 = 540

18×30 = 540

20×27 = 540

So the odd divisors are 1, 3, 5, 9, 15, 27, 45, 135.

So the number of odd divisors is 8.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

তিতাস গ্যাস ট্রান্সমিশন এন্ড ডিষ্ট্রিবিউশন কোম্পানী লি. | সহকারী ব্যবস্থাপক (অ্যাকাউন্টস) | ২৭.০৪.২০১৮

A. 6
B. 8
C. 12
D. 15
E. 24

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

1×540 = 540

2×270 = 540

3×180 = 540

4×135 = 540

5×108 = 540

6×90 = 540

9×60 = 540

10×54 = 540

12×45 = 540

15×36 = 540

18×30 = 540

20×27 = 540

So the odd divisors are 1, 3, 5, 9, 15, 27, 45, 135.

So the number of odd divisors is 8.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Probationary Officer | 31.03.2017 ||

A. two
B. three
C. four
D. six

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1699 . How many pieces of 85 cm length can be cut from a rod 42.5 meters long?

A. 30
B. 40
C. 60
D. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

42.5 meters = 4250cm

টুকরার সংখ্যা = 4250/85 টি = 50 টি

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1700 . How many pieces of 85 cm length stick can be cut from a 42.5 meters long stick?

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

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Given:

Length of the rod = 42.5 metres = 4250 cm

Pieces to be cut = 85 cm

Calculation:

Number of rods = 4250/85 = 50.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ব্যাংক অফিসার (ক্যাশ) || (02-06-2023)

A. 6
B. 7
C. 5
D. 10

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Probationary Officer | 31.03.2017 ||

A. 30
B. 31
C. 32
D. 33

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021

A. 48
B. 56
C. 62
D. 68

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

To find the number of positive integers less than 500 that can be formed using the digits 1, 2, 3, and 5, we can consider the following cases:

Case 1: 1-digit numbers (1, 2, 3, and 5) There are 4 one-digit numbers.

Case 2: 2-digit numbers We can form 2-digit numbers using the digits 1, 2, 3, and 5. These numbers can be any permutation of the digits.

Number of 2-digit numbers = 4 choices for the tens digit (1, 2, 3, or 5) × 4 choices for the units digit (excluding 0) = 4 × 4 = 16 numbers

Case 3: 3-digit numbers We can form 3-digit numbers using the digits 1, 2, 3, and 5. These numbers can be any permutation of the digits.

Number of 3-digit numbers = 4 choices for the hundreds digit (1, 2, 3, or 5) × 4 choices for the tens digit (1, 2, 3, or 5) × 3 choices for the units digit (excluding the tens digit) = 4 × 4 × 3 = 48 numbers

Now, let's sum up the numbers from all the cases:

Total number of positive integers less than 500 = Case 1 + Case 2 + Case 3 = 4 + 16 + 48 = 68

So, there are 68 positive integers less than 500 that can be formed using the digits 1, 2, 3, and 5.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1704 . How many positive integers less than ten thousand are multiples of both right and eighteen?

A. 70
B. 72
C. 138
D. 139

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1705 . How many prime numbers are less than 50 ?

A. 14
B. 15
C. 16
D. 18

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Hints : prime numbers less than 50:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

so total count is 15.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1706 . How many prime numbers are there between 50 and 60?

A. 10
B. 11
C. 2
D. 8

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

56 থেকে 100 পর্যন্ত মৌলিক সংখ্যা 9 টি । সংখ্যাগুলো হলো : 59, 61, 67, 71, 73, 79, 83, 89, 97 ।

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ৮টি ব্যাংক ও ১টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার (16-05-2025)

1707 . How many real roots does the polynomial $2 x^{3} + 8 x - 7$ have ?

A. None
B. One
C. Two
D. Three

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

অফিসার (জেনারেল) - 12.11.2021

A. 6
B. 8
C. 9
D. 10

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1709 . How many seconds will a 500 metre long train take to cross a man walking with a speed of 3km/hr in the direction of the moving train if the speed of the train is 63km/hr?

A. 25
B. 30
C. 40
D. 45

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

ব্যাখাঃ ট্রেনটি ১ ঘন্টায় অতিক্রম করে ( ৬৩ - ৩) কি.মি

= ৬০ কি.মি = ৬০×১০০০ মিটার

আবার, ১ ঘন্টা = ৩৬০০ সেকেন্ড

৬০×১০০০ মিটার অতিক্রম করে ৩৬০০ সেকেন্ড

৫০০ মিটার অতিক্রম করে ( ৩৬০০×৫০০)/ (৬০×১০০০) = ৩০ সেকেন্ড

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1710 . How many signals can be given by 5 flags of different colours using 3 flags at a time.

A. 5
B. 15
C. 60
D. 120

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Possible ways = 5P3 = 5 × 4 × 3 = 60 [Ways of choosing 3 flags from 5 flags is 5C3. But different signals can be given bay rearranging those 3 flags in 3! ways. So, total possible ways of giving signal = 5C3× 3! = 5P3]

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1696 . How many odd, positive divisors does 540 have?

1697 . How many odd, positive divisors dose 540 have ?

1698 . How many of the positive integers less than 25 are 2 less than an integer multiple of 4?

1699 . How many pieces of 85 cm length can be cut from a rod 42.5 meters long?

1700 . How many pieces of 85 cm length stick can be cut from a 42.5 meters long stick?

1701 . How many positive integer less than 100 have the reminder of 2 when divided by --

1702 . How many positive integers less than 100 are neithe multiples of 2 or 3.

1703 . How many positive integers less than 500 can we formed using the numbers 1,2,3 and 5 for the digit?

1704 . How many positive integers less than ten thousand are multiples of both right and eighteen?

1705 . How many prime numbers are less than 50 ?

1706 . How many prime numbers are there between 50 and 60?

1708 . How many rectanggular are there in the following figure:

1709 . How many seconds will a 500 metre long train take to cross a man walking with a speed of 3km/hr in the direction of the moving train if the speed of the train is 63km/hr?

1710 . How many signals can be given by 5 flags of different colours using 3 flags at a time.

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক