6796 . P,Q রাশি দুটীর গড় A 1 এবং X,Y রাশি দুটির গড় A 2 ; তাহলে P,Q,X,Y রাশি চারটির গড় কত ?

A. $\frac{A_{1} (P + Q) + A_{2} (X + Y)}{4}$
B. $\frac{P + Q}{2} + \frac{X + Y}{2}$
C. $\frac{A_{1} + A_{2}}{2}$
D. $\frac{A_{1} + A_{2}}{4}$

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2017 - বিভিন্ন মন্ত্রণালয়ের উপ-সহকারী প্রকৌশলী (সিভিল) - 19.06.2017

A. x - y + z
B. x + y - z
C. x - y - z
D. x + y + z

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

p+q=x…….. (1)

q+r=y……….(2)

r+p=z …….. (3)

(1)-(3) => p+q-r-p = x-z

=> q-r = x-z ………(4)

Now, (2)+(4)

q+r+q-r = x+y-z

=> 2q= x+y-z

Right Answer: x+y-z

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সামরিক ভূমি ও ক্যান্টনমেন্ট অধিদপ্তর || প্রতিরক্ষা মন্ত্রণালয় || জুনিয়র শিক্ষক (09-09-2023)

6798 . P, Q, R are employed to do a work for Tk. 5,750. P and Q together finished $\frac{19}{23}$ of work and Q and R together finished $\frac{8}{23}$ of work Wage of Q, in Taka, is

A. $1000$

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

A. 1/4
B. 3/4
C. 2/3
D. 3/2

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

6800 . P+Q=5 এবং p-q=3 হলে pq এর মান কত?

A. 15
B. 1
C. 4
D. 8

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

pq=(p+q/2)^2 - (p-q/2)^2

= (5/2)^2 -(3/2)^2

=25/4 - 9/4

=25-9/4

=16/4

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

খাদ্য অধিদপ্তর || অফিস সহকারী কাম কম্পিউটার মুদ্রাক্ষরিক (05-11-2021)

A. 3/4
B. 1/3
C. 5/6
D. এর কোনোটিই নয়

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

P(AUB) = P(A)+P(B)−P(A).P(B)
=1/3+3/4−1/3×3/4
=(4+9−3)12
=10/12
=5/6

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

পোস্টমাস্টার জেনারেল- পূর্বাঞ্চল- চট্টগ্রাম ।। পোস্টাল অপারেটর (17-06-2023) 2023

A. 10
B. 12
C. 24
D. 36

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ সেতু কর্তৃপক্ষ (সহকারী সাব-ইঞ্জিনিয়ার) 18-12-2020

A. A Jew
B. A Roman
C. A Turk
D. A Moor

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

6804 . On Tuesday Ray rode his bike 10 miles. On Wednesday he increased Tuesday’s distance by 5 miles. On Thrusday he decreased Wednesday’s distance by 7 miles. On Friday he increased Thrusday’s by 12 miles. How many total miles did Ray ride over the 4 day period?

A. 50
B. 51
C. 52
D. 53

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

রায় মঙ্গলবার যায় = 10 মাইল
রায় বুধবারে যায় = 10 + 5 = 15 মাইল
রায় বৃহস্পতিবারে যায় = 15 - 7 - 8 মাইল
রায় শুক্রবারে যায় = 8 + 12 = 20 মাইল
.:. 4টি মোট অতিক্রম করে = (10 - 15 + 8 + 20) = 53মাইল

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

জীবণ বীমা কর্পোরেশন (সহকারী ম্যানেজার) 16-10-2020

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

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

When a number is divided by 5 and we get a remainder of 3, it means the number can be expressed as:

Number = 5k + 3

where "k" is an integer.

Now, let's find the square of this number:

(Number)^2 = (5k + 3)^2

Expanding this expression:

(Number)^2 = 25k^2 + 30k + 9

Now, let's consider this expression modulo 5 to find the remainder when the square of the number is divided by 5.

25k^2 is divisible by 5, so it leaves no remainder.

30k is also divisible by 5, so it leaves no remainder.

Finally, 9 divided by 5 leaves a remainder of 4.

So, the remainder when the square of this number is divided by 5 is 4.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ গ্যাস ফিল্ড | সহকারী-ব্যবস্থাপক | 03-12-2021 || 2021

A. 10
B. 15
C. 20
D. 25
E. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Let's use the given information to calculate the percentage of drivers who exceed the speed limit:

First, let's assume there are 100 drivers on the highway for easy calculation.

According to the information, 5% of drivers are fined for exceeding the speed limit. So, 5% of 100 drivers are fined, which is 5 drivers.

It's also mentioned that 80% of the drivers who exceed the speed limit are not fined. So, let's say there are "x" drivers who exceed the speed limit. Out of these, 80% are not fined, which means 20% of them are fined.

We know that 5 drivers are fined, so we can set up the equation:

0.20x = 5

Now, solve for "x":
x = 5 / 0.20 = 25

So, there are 25 drivers who exceed the speed limit out of 100 drivers. To find the percentage, we can calculate:

(25 / 100) * 100% = 25%

Therefore, 25% of drivers on this highway exceed the speed limit.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ গ্যাস ফিল্ড | সহকারী-ব্যবস্থাপক | 03-12-2021 || 2021

A. Tuesday
B. Monday
C. Sunday
D. Wednesday

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

1 year = 365 days = 52 weeks + 1 day

In every next year one day is added with weeks, .Again, in every previous year one day is deducted from weeks.

Here, 2004 is a leap year which has 366 days. so, 2 days will dedicated from Tuesday of 2005.

So, the day is Sunday.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

A. 1,2,3
B. 6,8,10
C. 2,4,6
D. 4,7,10

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (সহকারী ব্যবস্থাপক) 25-09-2020

6809 . Of the following fractions which is less than $\frac{2}{3} ?$

A. $\frac{7}{8}$
B. $\frac{5}{6}$
C. $\frac{3}{4}$
D. $\frac{3}{5}$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

2/3 = 0.666 7/8 = 0.875 5/6 = 0.833 3/4 = 0.75 3/5 = 0.6 5/7 = 0.71429

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

6810 . O কেন্দ্রবিশিষ্টবৃত্তে AB, A বিন্দুতে স্পর্শক। $∠ A O B = 60 °$ হলে $∠ A B O =$ কত?

A. $60 °$
B. $45 °$
C. $40 °$
D. $30 °$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

প্রশ্ন হবেঃ O কেন্দ্রবিশিষ্ট বৃত্তে AB, A বিন্দুতে স্পর্শক। ∆AOB = ৬০ ডিগ্রী হলে ∆ABO = কত?

উত্তরঃ ৩০ ডিগ্রী

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

প্রত্নতত্ত্ব অধিদপ্তর || সহকারী কাস্টোডিয়ান/গবেষণা সহকারী (20-11-2023)

6797 . P, Q, R কেন্দ্র বিশিষ্ট তিনটি বৃত্ত পরস্পর স্পর্শ করে আছে। PQ = x, QR = Y এবং RP = 2 হলে Q বৃত্তের ব্যাস কত হবে?

6799 . p+q=√3 এবং p−q=√2হলে, pq = কত?

6800 . P+Q=5 এবং p-q=3 হলে pq এর মান কত?

6801 . P(A) = 1/3, P(B) = 3/4, A ও B স্বাধীন হলে, P(AUB) এর মান কত?

6802 . Out of 120 students, 70% students passed in math and 80% students passed in English. If only 12 students failed in both subjects, how many students passed only in english?

6803 . Othello is a Shakespeare's play about-----

6804 . On Tuesday Ray rode his bike 10 miles. On Wednesday he increased Tuesday’s distance by 5 miles. On Thrusday he decreased Wednesday’s distance by 7 miles. On Friday he increased Thrusday’s by 12 miles. How many total miles did Ray ride over the 4 day period?

6805 . On dividing a number by 5 , we get 3 as remainder, What will be the remainder when the square of this number is divised by 5?

6806 . On Dhaka- Sylet highway , 5% of the drives are fined for exceeding the speed limit. However , 80% of the drivers who exceed the speed limit are not fined. What percentage of dirvers on this highway exceed the speed limit?

6807 . On 8th feb,2005 it was tuesday. What was I the day of the week on 8Th feb,2004?

6808 . Of the following list of numbers, which has the greatest standard deviation?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক