1621 . how many integers from 1 to 1000 are divisible by 30 bt not 16

A. 29
B. 31
C. 32
D. 38

View Answer	Favorite Question

Answer: Option A

Explanation:

To find the number of integers from 1 to 1000 that are divisible by 30 but not by 16, you can use the following steps:

First, find the number of integers divisible by 30 in the range from 1 to 1000. To do this, divide 1000 by 30:

1000 ÷ 30 = 33.333...

Since we're looking for integers, there are 33 integers divisible by 30 in the range.

Next, find the number of integers divisible by both 30 and 16. To do this, find the least common multiple (LCM) of 30 and 16:

LCM(30, 16) = 240

Now, find the number of integers divisible by 240 in the range from 1 to 1000. To do this, divide 1000 by 240:

1000 ÷ 240 = 4.166...

Since we're looking for integers, there are 4 integers divisible by both 30 and 16 in the range.

Now, subtract the number of integers divisible by both 30 and 16 from the total number of integers divisible by 30:

33 (divisible by 30) - 4 (divisible by both 30 and 16) = 29

So, there are 29 integers from 1 to 1000 that are divisible by 30 but not by 16. The answer is 29.

Bangladesh bank - officer ( general) - 27.04.2018

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

1622 . How many kilogram of sugar costing TK. 9 per kg must be mixed with 27 kg of sugar costing TK. 7 per kg so that there may be a again of 10% by selling the mixture at TK. 9.24 per kg?

A. 36 kg
B. 42 kg
C. 56 kg
D. 63 kg
E. None of these

View Answer	Favorite Question

Answer: Option D

Explanation:

1623 . How many liters of a 90% of concentrated acid needs to be mixed with a 75% Solution of concentrated acid to get a 30 liter Solution of 78% concentrated acid?

A. 8
B. 6
C. 7
D. 9

View Answer	Favorite Question

Answer: Option B

Explanation:

1624 . How many liters of fuel are needed for a steamer to sail 2400 kilometers if it uses 40 liters of fuel to sail 320 kilometers?

A. 250
B. 255
C. 260
D. 300
E. None of these

View Answer	Favorite Question

Answer: Option D

Explanation:

To sail 320 km it uses 40 litera fuel

To, 2400 km it uses ( 40×2400)/320 = 300 liters fuel

1625 . How many meters is one nautical mile ?

A. 1750.18 meters
B. 1853.18 meters
C. 1650.20 meters
D. 1953 .18 meters

View Answer	Favorite Question

Answer: Option B

Explanation:

এক নটিক্যাল মাইল = ১.৮৫২ কিলোমিটার
১ কিলোমিটার = ১০০০ মিটার
১.৮৫২ কিলোমিটার = ১.৮৫২ × ১০০০ = ১৮৫২ মিটার

প্রধান প্রশাসনিক কর্মকর্তার কার্যালয় ( প্রতিরক্ষা মন্ত্রণালয়) সহকারী পরিচালক ০৫.০৪.২০১৯

A. Ten
B. Twenty-five
C. Fifty
D. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

১ কোটি হলো ১০০ লাখ এর সমান।

১০ মিলিয়নে ১ কোটি।

১০০ কোটিতে ১ বিলিয়ন।

Bangladesh Bank - Assistant Director - 2001

A. 60/dm
B. d/m
C. dm/60
D. 60 d/m

View Answer	Favorite Question

Answer: Option D

Explanation:

m mile can be travelled in 60 minutes

d mile can be travelled in (60 x d)/m minutes = 60d/m minutes.

1628 . How many numbers from 1 to 200 inclusive are equal to the cube of an integer?

A. 1
B. 2
C. 3
D. 4
E. None of these

View Answer	Favorite Question

Answer: Option E

Explanation:

1³ = 1

2³ = 8

3³= 27

4³ = 64

5³ = 125

So, there are 5 integers

1629 . How many numbers from 11 to 50 are there which are exactly divisible by 7 not by 3?

A. 6
B. 5
C. 4
D. 2

View Answer	Favorite Question

Answer: Option C

Explanation:

Speed of the train = 650/65 = 10 mps.
Speed of the man = 10/6 = 5/3 mps.
Time for the man to cross the platform = 240/(5/3) = 144 seconds = 2 minutes 24 seconds. Ans: D

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

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

View Answer	Favorite Question

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.

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

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.

1632 . How many of the positive integers less than 25 are 2 less than an integer multiple of 4?

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

View Answer	Favorite Question

Answer: Option D

Explanation:

1633 . 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

Answer: Option D

Explanation:

42.5 meters = 4250cm

টুকরার সংখ্যা = 4250/85 টি = 50 টি

1634 . 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

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.

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

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

View Answer	Favorite Question

Answer: Option B

Explanation:

1621 . how many integers from 1 to 1000 are divisible by 30 bt not 16

1622 . How many kilogram of sugar costing TK. 9 per kg must be mixed with 27 kg of sugar costing TK. 7 per kg so that there may be a again of 10% by selling the mixture at TK. 9.24 per kg?

1623 . How many liters of a 90% of concentrated acid needs to be mixed with a 75% Solution of concentrated acid to get a 30 liter Solution of 78% concentrated acid?

1624 . How many liters of fuel are needed for a steamer to sail 2400 kilometers if it uses 40 liters of fuel to sail 320 kilometers?

1625 . How many meters is one nautical mile ?

1626 . How many millions marks a crore ?

1627 . How many minutes will it take police car to travel a distance of d miles if it travels at m mile per hour?

1628 . How many numbers from 1 to 200 inclusive are equal to the cube of an integer?

1629 . How many numbers from 11 to 50 are there which are exactly divisible by 7 not by 3?

1630 . How many odd, positive divisors does 540 have?

1631 . How many odd, positive divisors dose 540 have ?

1632 . How many of the positive integers less than 25 are 2 less than an integer multiple of 4?

1633 . How many pieces of 85 cm length can be cut from a rod 42.5 meters long?

1634 . How many pieces of 85 cm length stick can be cut from a 42.5 meters long stick?

1635 . How many positive integer less than 100 have the reminder of 2 when divided by --

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