3391 . What is the annual interest rate on an account that carns Tk. 948 in simple interest over 36 months with an initial deposit of Tk. 7900?

A. 40%
B. 4%
C. 3%
D. 3.3%

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Answer: Option B

Explanation:

I = P*n* r

n = 36months = 3 years

r = ?

Here, 948 = 7900 * 3 * r

r = 4 %

সহকারী পরিচালক(AD) -12.11.2021

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

3392 . What is the are a of a square (in sq. meter) if its perimeter is 40 meter ?

A. 10
B. 100
C. 200
D. None of these

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Answer: Option B

Explanation:

Side of the square = 40 / 4 = 10 m [ Perimeter of square = 4 x side length]

So, area of the square = 10² = 100 m²

3393 . What is the area of a circle with aradious of 7 meters?

A. 154 sq. meters
B. 160 sq. meters
C. 185 sq. meters
D. 162 sq. meters

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Answer: Option A

Explanation:

3394 . What is the area of a square ( in Sq. meter) if its perimeter is 40 meter ?

A. 10
B. 100
C. 200
D. None of these

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Answer: Option B

Explanation:

If perimeter of a square is 40,

it's length is 40/4 = 10

so it's area is 102 = 100

Bangladesh Bank - Officer - 2001

A. 10
B. 100
C. 200
D. None of these

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Answer: Option B

Explanation:

3396 . What is the area of a square in square meter if its perimeter is 80?

A. 220
B. 300
C. 400
D. 600
E. None of them

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Answer: Option C

Explanation:

square has all 4 side equal so each side = perimeter/4 = 80/4 = 20 cm

when each side is 20cm then area of square is = side*side = 20*20 = 400 SQ cm

Answer: Area Of Square is = 400 SQ cm

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

A. 50
B. 50.5
C. 51
D. 51.5

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Answer: Option B

Explanation:

Arithmetic Mean = (Sum of Numbers) / (Number of Numbers)

In this case, the sum of the first 100 natural numbers can be found using the formula for the sum of an arithmetic series:

Sum = (n/2) * [2a + (n-1)d]

Where: n = Number of terms a = First term d = Common difference

For the first 100 natural numbers: n = 100 a = 1 (first natural number) d = 1 (common difference between natural numbers)

Now, plug these values into the formula:

Sum = (100/2) * [2(1) + (100-1)(1)] Sum = (50) * [2 + 99] Sum = 50 * 101 Sum = 5050

Now that you have the sum of the first 100 natural numbers, you can find the arithmetic mean:

Arithmetic Mean = (Sum of Numbers) / (Number of Numbers) Arithmetic Mean = 5050 / 100 Arithmetic Mean = 50.5

So, the arithmetic mean of the first 100 natural numbers is 50.5.

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 180
B. 185
C. 200
D. 205
E. 210

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Answer: Option D

Explanation:

3399 . What is the average (arithmetic mean) of all multiples of 10 from 10 to 400 inclusive?

A. 190
B. 195
C. 200
D. 205

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Answer: Option D

Explanation:

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

A. 39
B. 41
C. 45
D. 47

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Answer: Option B

Explanation:

3401 . What is the average of 0.36, 4.6, 0.64 and 2.4?

A. 1
B. 2
C. 2.5
D. 10

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Answer: Option B

Explanation:

0.36 + 4.6 + 0.64 + 2.4 = 8

= 8/4

= 2

চারটি সংখ্যার যোগফল ৮ এবং চারটি সংখ্যার কারণে ৪ দিয়া ভাগ হবে।

3402 . What is the average of odd numbers from 1 to 40?

A. 20
B. 21
C. 31
D. 41

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Answer: Option A

Explanation:

Janata Bank PLC || Officer (Rural Credit) (27-10-2023) || 2023

A. 39
B. 40
C. 41
D. 42

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Answer: Option C

Explanation:

3404 . What is the difference between the amount of interest eamed on a principal of Tk. 100 for 2 years at 10% simple interest rate and 10% compounding interest rate?

A. Tk. 121
B. Tk. 120
C. Tk. 2
D. Tk. 1

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Answer: Option D

Explanation:

Here,

P= 100; n= 2years; r= 10%

Shortcut: Difference between the two interest:

Pr^2 = 100×(10/100)^2 = 1

Ans: 1

সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. 8
B. 12
C. 18
D. 140

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Answer: Option C

Explanation:

60 ও 80 এর মধ্যে সর্বোচ্চ মৌলিক সং!খ্যা 79
60 ও 80 ,, ,, সর্বনিম্ন ,, ,, 61
⸫ পার্থক্য = 18

Bangladesh Bank - Assistant Director - 2015

3391 . What is the annual interest rate on an account that carns Tk. 948 in simple interest over 36 months with an initial deposit of Tk. 7900?

3392 . What is the are a of a square (in sq. meter) if its perimeter is 40 meter ?

3393 . What is the area of a circle with aradious of 7 meters?

3394 . What is the area of a square ( in Sq. meter) if its perimeter is 40 meter ?

3395 . What is the area of a square (in sq. meter) if its perimeter is 40 meter?

3396 . What is the area of a square in square meter if its perimeter is 80?

3397 . What is the arithmetic mean of the first 100 natural numbers?

3398 . What is the average (arithmatic mean) of

3399 . What is the average (arithmetic mean) of all multiples of 10 from 10 to 400 inclusive?

3400 . What is the average (arithmetic mean) of the values 39,40,39,45,42,35,47

3401 . What is the average of 0.36, 4.6, 0.64 and 2.4?

3402 . What is the average of odd numbers from 1 to 40?

3403 . What is the average of the series 1, 5, 9....., 81?

3404 . What is the difference between the amount of interest eamed on a principal of Tk. 100 for 2 years at 10% simple interest rate and 10% compounding interest rate?

3405 . What is the difference of largest and smallest prime number between 60 and 80 ?

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