3511 . When squared value of a number is subtracted from 5 times of a number, the result is 6. What is the number?

A. -2
B. 2
C. -3
D. 4

View Answer	Favorite Question

Answer: Option B

Explanation:

5x-x²=6

or, x(5-x)=6

or, x²-5x+6=0

or, x(x-2)-3(x-2)=0

or, (x-2)(x-3)=0

So, x=2,3 [3 isn't in the options]

(ans)

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

3512 . When the diameter of a circle is trebled , the area is multiplied by how many times ?

A. 3
B. 6
C. 9
D. 12

View Answer	Favorite Question

Answer: Option C

Explanation:

Bangladesh Bank - Assistant Director - 2015

A. 3
B. 6
C. 9
D. 12

View Answer	Favorite Question

Answer: Option C

Explanation:

কোন বৃত্তের ব্যাস ( diameter) 3 গুন বৃদ্ধি করলে ক্ষেত্রফল বৃদ্ধি পাবে ( 3) 2 = 9 গুন।

3514 . When the numerator of a fraction increases by 4, the fraction increases by 2/3. The denominator of the fraction is:

A. 2
B. 3
C. 4
D. 6

View Answer	Favorite Question

Answer: Option D

Explanation:

3515 . When the positive integer n is divided bu 18, the remainder is 7. What is the remainder when n is divided by 6?

B. 1
C. 2
D. cannot be deternined

View Answer	Favorite Question

Answer: Option B

Explanation:

3516 . When the positive integer n is divided by 18, this remainder is 7. What is the remainder when n is divided by 6?

A. 1

View Answer	Favorite Question

Answer: Option A

Explanation:

বিমান বাংলাদেশ এয়ারলাইন্স লিঃ নিয়োগ পরীক্ষা-২০১৮। গ্রাউন্ড সার্ভিস অ্যাসিসটেন্ট। ১৩.১০.২০১৮

A. 90% decrease
B. 70% decrease
C. 90% increase
D. 80% decrease

View Answer	Favorite Question

Answer: Option A

Explanation:

3518 . When the price of oranges decreases by 20%, a person can buy 5 oranges more for Tk. 100. How many oranges can he buy, if he spends Tk. 120.

A. 30
B. 35
C. 40
D. 50

View Answer	Favorite Question

Answer: Option A

Explanation:

Here, 20% of 100 = 20 = Price of 5 Oranges

So, Price of 1 Orange=4 Tk.

Now, He can buy at 120 Tk.
= 30 Oranges (Ans)

One Bank Ltd || Special Cadre Officer (03-01-2025) || 2025

A. 8 km
B. 4 km
C. 12 km
D. 2 km

View Answer	Favorite Question

Answer: Option B

Explanation:

Let's denote the original speed as "x" miles per hour.

When the speed is increased by 4 miles per hour, the new speed becomes "x + 4" miles per hour.

We are given that when the speed is increased by 4 miles per hour, it takes 4 hours less to cover a distance of 32 km. We can set up the equation using the formula:

Time = Distance / Speed

Original time = 32 km / x New time = 32 km / (x + 4)

According to the given information, the new time is 4 hours less than the original time. So, we can write:

Original time - New time = 4 hours

32 km / x - 32 km / (x + 4) = 4

To solve this equation, let's first find a common denominator, which is x(x + 4):

(32(x + 4) - 32x) / (x(x + 4)) = 4

Now, simplify the equation:

(32x + 128 - 32x) / (x(x + 4)) = 4

128 / (x(x + 4)) = 4

Now, cross-multiply:

128 = 4(x(x + 4))

Divide both sides by 4:

32 = x(x + 4)

Now, let's solve for x by factoring:

x(x + 4) = 32

x² + 4x - 32 = 0

Now, we can factor the quadratic equation:

(x + 8)(x - 4) = 0

Setting each factor equal to zero:

x + 8 = 0 or x - 4 = 0

If x + 8 = 0, then x = -8, but since we're looking for a speed, it must be positive.

If x - 4 = 0, then x = 4.

So, the previous speed (original speed) was 4 km per hour.

3520 . When you see a blind man trying to cross the road , you

A. go and help him
B. ignore and move on
C. ask someone to help him
D. wait till he crosses the road

View Answer	Favorite Question

Answer: Option A

Explanation:

Because a blind person can't see. So that he might be in danger. You should go and help him instead of watching what's going on.

Bangladesh Bank - Officer(Cash) - 2016

3521 . Which of the following equations is not equivalent to $25 x^{2} = y^{2} - 4$ ..

A. $25 x^{2} + 4 = y^{2}$
B. $75 x^{2} = 3 y^{2} - 12$
C. $25 x^{2} = (y + 2) (y - 2)$
D. $5 x = y - 2$

View Answer	Favorite Question

Answer: Option D

Explanation:

3522 . which disk is used to cold boot a PC

A. setup disk
B. system disk
C. diagonostic disk
D. programe disk

View Answer	Favorite Question

Answer: Option B

Explanation:

A hard disk, CD-ROM, or floppy disk that contains part or all of the operating system or other control program is called a system disc. It is used to perform cold boot or hard boot.

Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. 314
B. 3140
C. 3140000
D. none of these

View Answer	Favorite Question

Answer: Option C

Explanation:

3.14 × 106 = 3.14 × 102 × 104

= 314 × 10000

= 3140000

3524 . which is the following is nota programming language

A. java
B. pascle
C. ms-excle
D. c++

View Answer	Favorite Question

Answer: Option C

Explanation:

Microsoft Excel is a spreadsheet editor

Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. 52
B. 26
C. 24
D. 12

View Answer	Favorite Question

Answer: Option A

Explanation:

ধরি, গ.সা.গু= x

ল.সা.গু= 6×13×x = 78x

Now, 78x= 312

X=4

Largest number= 13×4 = 52

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

3511 . When squared value of a number is subtracted from 5 times of a number, the result is 6. What is the number?

3512 . When the diameter of a circle is trebled , the area is multiplied by how many times ?

3513 . When the diameter of a circle is tripled, the are of the circle will be increased by how many times?

3514 . When the numerator of a fraction increases by 4, the fraction increases by 2/3. The denominator of the fraction is:

3515 . When the positive integer n is divided bu 18, the remainder is 7. What is the remainder when n is divided by 6?

3516 . When the positive integer n is divided by 18, this remainder is 7. What is the remainder when n is divided by 6?

3517 . When the price of a toy was increased by 30% the number of toys sold fell by 30%. What is the effect on the sale of the shop?

3518 . When the price of oranges decreases by 20%, a person can buy 5 oranges more for Tk. 100. How many oranges can he buy, if he spends Tk. 120.

3519 . When the speed is increased by 4 miles per hour, it takes 4 hour less to cover a distance of 32 km. Find the previous speed.

3520 . When you see a blind man trying to cross the road , you

3522 . which disk is used to cold boot a PC

3523 . Which is the following is equal to 3.14 * 10^6 ?

3524 . which is the following is nota programming language

3525 . Which is the larger between two numbers if they are in the ratio of 6: 13 and their least common multiple is 312?

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