3211 . The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of student in the class?

A. 48
B. 44
C. 42
D. 40
E. None of these

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

No of girls  =  x
so x  +  3x  =  4x
42 is not divisible by 4

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

📢 BdMerit অ্যাপে সরকারি চাকরি না হলে সম্পূর্ণ টাকা ফেরত!

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

এর মধ্যে চাকরি না হলে- 🎁 BdMerit দিবে ১০০% ক্যাশব্যাক!

🚀 আজই ডাউনলোড করুন bdMerit-এর অ্যাপ▶️ এবং আপনার সাফল্যের পথ সুগম করুন!

3212 . The number of flights leaving a certain airport doubles during every one-hour period between its 9 am opening and noon; afternoon, the number of flights leaving from the airport doubles during every two-hour period. If 4 flights left from the airport between 9 am and 10 am, how many flights left the airport between 2 pm and 4 pm?

A. 128
B. 32
C. 48
D. 64
E. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

9 টা থেকে noon অর্থাৎ 12টা পর্যন্ত flight সংখ্যা double হয় প্রতি 1 ঘণ্টায় । 9 টা থেকে 10 টায় ছুটি flight হলে 10 - 11 টায় 2x, 11  -  12 টায় 4x / Noori - এর পর প্রতি দুই ঘণ্টায় হয় দ্বিগুণ। 12  - 2 টায় ৪r 2টা থেকে 4টায় হয় 16x, তাহলে x  =  4 দেওয়া আছে। সুতরাং ফ্লাইট সংখ্যা  =  16x  =  16   ×  4  =  64

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3213 . The number of girls in a class is 5 times the number of boys. Which of the following can not be the total number of children in the class?

A. 24
B. 30
C. 35
D. 126

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Hints: এটি Ans দেখে solve করতে হবে boy এর সংখ্যা b এবং girl এর সংখ্যা 5b এখন 5b + b = 6b

এখানে, 35 কে 6 দিয়ে নি:শেষে ভাগ করা যায় না। কাজেই সঠিক উত্তরঃ 35

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3214 . The number of marbles in Amin’s collection is 80% of the number in Rahim’s collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether?

A. 720
B. 120
C. 135
D. 400

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3215 . The number of mosquitoes, M(x) in millions of Dhaka city depends on rainy seasons' rainfall, x, in inches approximately as: M(x)=12x-x2. What would be the maximum of mosquitoes in Dhaka city?

A. 6
B. 36
C. 12-2x
D. 12

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Uttara Bank PLC || Probationary Officer (09-11-2024) || 2024

A. 6
B. 9
C. 12
D. 18

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

To find the number of parallelograms that can be formed from a set of four parallel lines intersecting another set of three parallel lines, you can use the following method:

Understand the pattern: Each parallelogram can be formed by selecting two vertical lines and two horizontal lines that intersect to create a closed shape.

Count the vertical lines: There are 4 vertical lines in the first set.

Count the horizontal lines: There are 3 horizontal lines in the second set.

Choose two vertical lines: You can choose 2 out of the 4 vertical lines in C(4, 2) ways, where C(n, k) represents the combination of n items taken k at a time.

Choose two horizontal lines: Similarly, you can choose 2 out of the 3 horizontal lines in C(3, 2) ways.

Calculate the total number of parallelograms: To find the total number of parallelograms, multiply the number of ways to choose vertical lines by the number of ways to choose horizontal lines:

Total parallelograms = C(4, 2) * C(3, 2)

Now, calculate:

C(4, 2) = 4! / (2!(4-2)!) = 6

C(3, 2) = 3! / (2!(3-2)!) = 3

Total parallelograms = 6 * 3 = 18

So, the number of parallelograms that can be formed is 18. The answer is indeed 18.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. +3%
B. -3%
C. +17%
D. +20%

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

ব্যাখাঃ Percentage change ( A + B + AB/100)

= { 30 + ( - 10) + 30× ( - 10)/100}%

= + 17%

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3218 . The number of passengers on Dhaka-Rangpur route increased by 35% when the fare was reduced by 15%. What will be the percentage increase in revenue?

A. 14.75
B. 19.25
C. 20.50
D. 25

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3219 . The number of stamps in Ziko's collection is 75% of the number in Pallab's collection. If Pallab has 80 more stamps than Ziko, how many stamps do they have altogether?

A. 320
B. 240
C. 560
D. 620
E. None of these

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

let, pallab has = X stamps

ziko has = 0.75X stamps

pallab has x - 0.75x = 0.25x more stamps than than ziko.

apq,

0.25x = 80

x = 320

pallab has = 320 stamps

ziko has = 320x.75 = 240

together they have = 320 + 240 = 560

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3220 . The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:

A. 162
B. 108
C. 96
D. 54

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

A. 24
B. 14
C. 48
D. 114
E. None of these

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

4 student নিয়ে section = 16 - 3 = 13

13×24 = 312 students

after admitting new students

13 + = 16 section 21 student নিয়ে

16×21 = 336 students

নতুন student = 336 - 312 = 24

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 10
B. 25
C. 30
D. 32

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ৮ ব্যাংক ও ১ আর্থিক প্রতিষ্ঠান — অফিসার (জেনারেল) (04-07-2025) | 2025

A. 18
B. 24
C. 22
D. 25

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

A. 4
B. 5
C. 6
D. 7

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Here,

(2+3+5+x) / 4 = 4

=> 10+x = 16

=> x = 16-10 = 6.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ৫ ব্যাংক || অফিসার (ক্যাশ) (11-03-2022)

A. 6.5
B. 4
C. 3
D. 3.5

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

the sum of the 5 quantities is 5 x 6 = 30. The average of three of these 5 quantities is 8. The sum of the remaining two quantities = 30 - 24 = 6. Average of these two quantities = 6/2 = 3.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3211 . The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of student in the class?

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

এর মধ্যে চাকরি না হলে- 🎁 BdMerit দিবে ১০০% ক্যাশব্যাক!

🚀 আজই ডাউনলোড করুন bdMerit-এর অ্যাপ▶️ এবং আপনার সাফল্যের পথ সুগম করুন!

3213 . The number of girls in a class is 5 times the number of boys. Which of the following can not be the total number of children in the class?

3214 . The number of marbles in Amin’s collection is 80% of the number in Rahim’s collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether?

3215 . The number of mosquitoes, M(x) in millions of Dhaka city depends on rainy seasons' rainfall, x, in inches approximately as: M(x)=12x-x2. What would be the maximum of mosquitoes in Dhaka city?

3216 . the number of parallellograms that can be formed from a set of four parallei lines intersecting another set of three parallel lines is

3217 . The number of passengers on Dhaka-Rangpur route increased by 30% when the fare was reduced by 10%. What will be the percentage change in revenue?

3218 . The number of passengers on Dhaka-Rangpur route increased by 35% when the fare was reduced by 15%. What will be the percentage increase in revenue?

3219 . The number of stamps in Ziko's collection is 75% of the number in Pallab's collection. If Pallab has 80 more stamps than Ziko, how many stamps do they have altogether?

3220 . The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:

3221 . The number of students in each section of a school is 24, After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. The number of new students admited is-

3222 . The number of subsets of a set with 5 elements is:

3223 . The numbers 11, 12, 14, x-2, x+4,x+ 9, 32, 38, 47 are arranged in ascending order and the median is 24: find x.

3224 . The numbers 2,3,5 and x have an average equal to 4 . What is x?

3225 . The of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক