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1 . If a number is divisible by 102, then it is also divisible by which of the followinig number?

A. 2
B. 3
C. 17
D. All

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Answer: Option D

Explanation:

As 102 is divisible by 2, 3 and 17 then the number which is divisible by 102 is also divisible by all of three numbers.

2 . If a number is divisible by 102, then it is also divisible:

A. 23
B. 11
C. 5
D. 2

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Answer: Option D

Explanation:

As 102 is divisible by 2, 3 and 17 then the number which is divisible by 102 is also divisible by all of three numbers.

3 . 1024 Terabyte=

A. 1 Gigabyte
B. 1 Zettabyte
C. 1 Exabyte
D. 1 Petabyte

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Answer: Option D

Explanation:

সমন্বিত ৮ ব্যাংক | অফিসার | 21-01-2022

4 . If Tk./$=68 and Tk./E =102, then cross rate of E/$ is equal to :

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

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Answer: Option B

Explanation:

here, Tk./$ = 68

so, $ = 1/68 tk

and Tk./E = 102,

so, E = 1/102 tk

then cross rate of E/$ is = (1/102) / (1/68)

= 2/3

ans: 2/3

Sonali- Janata &amp- Agrani Bank Offier (Cash Recruitment) 22.02.2008

5 . If a number of divisible by 102, then it is also divisible by :

A. 23
B. 11
C. 5
D. 2

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Answer: Option D

Explanation:

102 is a even number. Every even number is divisible by 2. So, easily the answer is 2.

6 . A person deposited Tk. 400 for 2 years, Tk. 550 for 4 years and Tk. 1200 for 6 years. He received the total simple interest of Tk. 1020. The rate of interest per annum is

A. 10%
B. 5%
C. 15%
D. 20%

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Answer: Option A

Explanation:

ধরি, সুদের হার r %

400 × 2 × r/100 + 550 × 4 × r/100 + 1200 × 6 × r/100 = 1020

8r + 22r + 72r = 1020

102r = 1020

r = 10 %

7 . 12.1212 + 17.0005 - 9.1102 = ?

A. 20.0105
B. 20.1015
C. 20.0115
D. 20.0015

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Answer: Option C

Explanation:

8 . One petabyte is equal to 1024-

A. Exabyte
B. Terabyte
C. Giga
D. Zetta

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Answer: Option B

Explanation:

কম্পিউটার মেমোরিতে ডেটা সংরক্ষণের পরিমাণকে মেমোরির ধারণক্ষমতা বলে।

তিতাস গ্যাস ট্রান্সমিশন অ্যান্ড ডিস্ট্রিবিউসন কো. লি.-সহকারী ব্যবস্থাপক-08-10-2021

9 . If log 2= 0.3010 and log 3=0.4771. What is the value of log5 1024?

A. 4.31
B.
C.
D.

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Answer: Option A

Explanation:

দেওয়া আছে, \log_{5} 1024 = \frac{\log 1024}{\log 5} = \frac{\log 2^{10}}{\log \frac{10}{2}} = \frac{10 \log 2}{\log 10 - \log 2} = \frac{10 \times 0.3010}{1 - 0.3010} = \frac{3.01}{0.699} = \frac{3010}{699} = 4.31

Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

10 . How many 'I's will be there in the binary representation of the following expression (assume 16 bit number _ 12 + 64 + 128 + 256 + 1024 )

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

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Answer: Option C

Explanation:

Sonali- Rupali- Bangladesh Krishi- Rajshahi krishi unnayn-Investment Corporation of Bangladesh | 30.11.2018

11 . 102

A. $10^{5}$
B. $10^{6}$
C. $10^{7}$
D. $10^{8}$

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Answer: Option D

Explanation:

Let, 10^2 is X times of (0.01)^3

So, 10^2 = X × (0.01)^3

Or, 10^2 = X × (10^-2)^3

Or, X = 10^2/10^-6

Or, X = 10^2-(-6)

Or, X = 10^8

And the answer is 10^8.

12 . 102

A. $10^{5}$
B. $10^{6}$
C. $10^{7}$
D. $10^{8}$

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Answer: Option D

Explanation:

Let, 10^2 is X times of (0.01)^3

So, 10^2 = X × (0.01)^3

Or, 10^2 = X × (10^-2)^3

Or, X = 10^2/10^-6

Or, X = 10^2-(-6)

Or, X = 10^8

And the answer is 10^8.

13 . 102y=25,

A. $\frac{1}{50}$
B. $\frac{1}{625}$
C. $\frac{1}{2}$
D. $\frac{1}{5}$

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Answer: Option D

Explanation:

14 . একটি তড়িৎ কোষের তড়িচ্চালক বল 2.0V। এর সাথে 102 একটি রোধক যুক্ত করলে কোষের পাত দুইটি মধ্যে বিভব পার্থক্য দাঁড়ায় 1.6 V। কোষটির অভ্যন্তরীন রোধ কত?

A. 0.4Ω
B. 2.5Ω
C. 1.5Ω
D. 0.52Ω

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Answer: Option B

Explanation:

C unit (বিজ্ঞান) শিফট-১ (২০২৩-২০২৪) || (05-03-2024) || রাজশাহী বিশ্ববিদ্যালয় || 2024

15 . 1010102

A. LSB
B. MSB
C. LSD
D. MSD

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Answer: Option B

Explanation:

আন্ডারগ্র্যাজুয়েট প্রোগ্রাম ভর্তি পরীক্ষা || বিজ্ঞান ইউনিট (সাত কলেজ) ২০২৩-২০২৪ || ঢাকা বিশ্ববিদ্যালয় || 2024

16 . কোনো অর্গান থেকে নি:সৃত সুরগুলোর কম্পাঙ্ক 256, 268, 512, 620, 768, 1020, 1280, 1992 ও 2048 Hz হলে নিচের কম্পাঙ্কগুলোর মধ্যে মূল সুরের অষ্টক কোনটি?

A. 256 Hz
B. 268 Hz
C. 2048 Hz
D. 512 Hz

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Answer: Option D

Explanation:

C ইউনিট : 2019-2020 (গ্রুপ-১) || 2019

17 . 10112+100102=?

A. ${(22)}_{10}$
B. ${(29)}_{10}$
C. ${(19)}_{10}$
D. ${(27)}_{10}$

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Answer: Option B

Explanation:

18 . Ag⇌2Bg

A. 8.314
B. 3.70
C. $\frac{1}{30}$
D. $\frac{1}{3}$

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Answer: Option D

Explanation:

A Unit (বিজ্ঞান)।। ২০২২-২০২৩ (03-06-2023) || গুচ্ছ বিশ্ববিদ্যালয়(GST) || 2023

19 . 3×1029m3

A. $3.43 m s^{- 1}$
B. $8.8 \times 10^{- 6} m s^{- 1}$
C. $437 \times 10^{5} m s^{- 1}$
D. $3.437 \times 10^{- 5} m s^{- 1}$

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Answer: Option D

Explanation:

C unit (বিজ্ঞান) গ্রুপ-১ (২০২২-২০২৩)।। (29-05-2023) || রাজশাহী বিশ্ববিদ্যালয় || 2023

20 . 256 cycles /s কম্পাঙ্ক বিশিষ্ট একটি সুর শলাকা হইতে উৎপন্ন শব্দ তিন সেকেন্ডে 1020 m দূরত্ব অতিক্রম করে । বায়ুতে শব্দের তরঙ্গ দৈর্ঘ্য কত?

A. 332.8 cm
B. 308.7 cm
C. 132.8 cm
D. 225.5 cm

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Answer: Option C

Explanation:

ক ইউনিট (2009-2010) || ঢাকা বিশ্ববিদ্যালয় || 2009

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