2626 . Kamal is shorter than Ruhan, but taller than Anika, Dina is shorter than Kamal . Rubayet is shorter than Ruhan but taller than Kamal . Who is tallest in terms of height ?

A. Kamal
B. Ruhan
C. Anika
D. Dina

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Answer: Option B

Explanation:

Kamal < Ruhan

Kamal > Anika

Kamal > Dina

Rubayet < Ruhan

Rubayet > Kamal or, Kamal < Rubayet

Thus, Ruhan is the tallest.

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Bangladesh Bank - Assistant Director - 2010

A. Tk. 2380
B. Tk. 2300
C. Tk. 2280
D. Tk. 2260

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Answer: Option A

Explanation:

Actually, the question lacks basic information.

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সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

A. Babu
B. Dipu
C. Kamal
D. Lipu
E. Momen

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Answer: Option E

Explanation:

Let momen weights = 100 kg

Kamal weights = 200 kg

Babu weights = 142.85 kg

Dipu weights = 180 kg

Lipu weights = 360 kg

Momen weights least

Ans 5

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2629 . Kamal went to a shop and bought things worth Tk 25, out of which 30 pasa went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?

A. Tk 15
B. Tk 15.70
C. Tk 19.70
D. Tk 20
E. None of these

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Answer: Option C

Explanation:

25 TK এর মধ্যে 30 paisa tax.তাহলে original purchase হয়ছে( 25 - .30) বা 24.7 টাকায় যদি এর মধ্যে x টাকার হয় tax free item তবে প্রশ্নমতে বাকি জিনিসের উপর 6% ট্যাক্স।

(24.7 - x) × o.o6 = 0.30

1.482 - 0.06x = 0.30

1.482 - 0.30 = 0.06x

0.06x = 1.182

x = 19.70

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দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 3 ≤ x ≤ 12
B. 3 ≤ x ≤ 17
C. 3 ≤ x ≤ 10
D. 3 ≤ x ≤ 14

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Answer: Option D

Explanation:

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2631 . Karim, Rahim, Ram & Shyam have the following probabilities of passing the admission test 20%, 30%, 25% and 50% respectively. What is the probability of Karim, Rahim and Shyam will pass the test?

A. 30%
B. 3%
C. 0%
D. 100%

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Answer: Option B

Explanation:

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2632 . Karim and Babu can build a wooden table in 3 days. Babu can do it alone in 5 days. How many days would it take Karim to do this job alone?

A. 0.2
B. 7.5
C. 5.0
D. 6.4

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Answer: Option B

Explanation:

1/A + 1/B = 1/3(A & B Work done per day is 1/A & 1/B)
1/5 + 1/B = 1/3
B = 7.5

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2633 . Karim can buy single poster boards for 80 paisa each or a package of 12 poster boards for Taka 7.50. How much more (in Taka) would Karim have to pay for 3 dozen poster boards if he buys them individually than if he buys them in packages?

A. 6.30
B. 2.30
C. 5.40
D. None of the above

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Answer: Option A

Explanation:

3×12=36

1 costs 80 paisa

So, 36 cost=80×36=2880 paisa=28.8 taka

Again,

1 dozen costs 7.50 taka

So, 3 dozens cost=3×7.50=22.5 taka

So, more=28.8-22.5=6.30 taka

(ans)

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2634 . Karim drove for h hours at a constant rate of r miles per hour . How many miles did he go during the final 20 minutes of his drive ?

A. 20r
B. hr/3
C. r/3
D. hr/20

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Answer: Option C

Explanation:

we know,

Distance (D) = Speed (S) * Time (T)
so, S * T = r*20/60 mins

= r / 3.(ans)

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2635 . Karim has bought some pens for 120 taka. If each pen cost him 2 taka less then he could buy 2 more pens. How many pens did he buy?

A. 8
B. 10
C. 12
D. 14

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Answer: Option B

Explanation:

Let's use algebra to solve this problem. Let "x" be the number of pens Karim originally bought, and "p" be the cost of each pen in taka. We are given two pieces of information:

He bought some pens for 120 taka, which means: x * p = 120

If each pen cost him 2 taka less, he could buy 2 more pens, which means: (x + 2) * (p - 2) = 120

Now, we have a system of two equations:

x * p = 120
(x + 2) * (p - 2) = 120

We can solve this system of equations simultaneously. Let's start with equation (1):

x * p = 120

Now, let's express "p" in terms of "x" from equation (1):

p = 120 / x

Now, substitute this expression for "p" into equation (2):

(x + 2) * ((120 / x) - 2) = 120

Let's simplify this equation:

(x + 2) * ((120 - 2x) / x) = 120

Now, let's eliminate the fractions by multiplying both sides by "x":

(x + 2) * (120 - 2x) = 120x

Expand and simplify:

120x - 2x^2 + 240 - 2x = 120x

Now, bring all the terms to one side:

-2x^2 + 240 - 2x = 0

Divide the entire equation by -2 to simplify:

x^2 - 120 + x = 0

Now, let's solve this quadratic equation for "x." We can use the quadratic formula:

x = (-b ± √(b² - 4ac)) / (2a)

In this case, a = 1, b = -120, and c = 1. Plug these values into the formula:

x = (-(-120) ± √((-120)² - 4(1)(1))) / (2(1))

Simplify:

x = (120 ± √(14400 - 4)) / 2

x = (120 ± √14396) / 2

Now, calculate the square root:

x = (120 ± 119.997) / 2

Now, consider both the positive and negative roots:

x = (120 + 119.997) / 2 ≈ 119.998 / 2 ≈ 59.999 (approximately 60)
x = (120 - 119.997) / 2 ≈ 0.003 / 2 ≈ 0.0015 (approximately 0)

Since Karim cannot buy 0 pens, the only reasonable solution is that he originally bought approximately 60 pens.

However, the problem states that if he could buy pens for 2 taka less, he could buy 2 more pens. This suggests that he bought 12 pens initially (60 / 5 = 12), and each pen cost 10 taka (120 / 12 = 10).

So, Karim initially bought 12 pens.

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2636 . Karim has exactly 3 times as many Bangladesh as non-Bangladesh stamps in his collection . Which of the following cannot be the number of stamps in Karim's collection ?

A. 54
B. 72
C. 80
D. 96

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Answer: Option A

Explanation:

Here, the ratio is 3 : 1. The total number of stamps must be divisible by the sum of the ratios which is (3 + 1 = 4). Only the number 54 is not divisible by 4. So, 54 cannot be the total number of stamps in his collection.

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2637 . Kibria went to the swtationers and bought things worth Tk 25 out of which 30 paisa was sales tax on taxable items. If the tax rate is 6% , then what was the cost of the tax free items?

A. Tk 15
B. Tk 15.70
C. Tk 19.70
D. Tk 20
E. None of these

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Answer: Option C

Explanation:

Let the amount taxable payments be Tk. x

According to question, 6% of x = 30/100

x = (30/100 ×100/6

x = 5

Cost of tax free items = [ 25 - (5 + . 30)] = tk.19.70

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2638 . Kiran purchased a scooter for Tk.52000. He sold it at loss of 10%. With that money he purchased another scooter and sold it at profit of 20%. What is his overall loss profit?

A. tk.2060 profit
B. tk.2560 loss
C. tk.1340 loss
D. tk.4160 profit

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Answer: Option D

Explanation:

SP of the 1st Scooter = (100 – Loss%) /100 x CP
= 90/100 × 52000

= 46800/-
SP of the 2nd Scooter = (100 + Gain%) /100 X CP
= 120/100 × 46800

= 56160
Profit = Tk. 56160 – Tk.. 52000 = Tk. 4160/-

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অফিসার (ক্যাশ) নিয়োগ পরীক্ষা- ১২-১০-২০১৮ ||

A. Tk. 252.50
B. Tk. 606
C. Tk. 10,100
D. Tk. 101

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Answer: Option D

Explanation:

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সহকারী পরিচালক(AD) -12.11.2021

A. Tk. 10,464
B. Tk. 864
C. Tk. 816
D. Tk. 800

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Answer: Option C

Explanation:

চক্রবৃদ্ধি মুনাফার ক্ষেত্রে সবৃদ্ধিমূল

c = p ( 1 + r/m)^mn

= 10000[ 1 + 8/(2×100)]^2.1

= 10000 × (1.04)²

= 10816

চক্রবৃদ্ধি মুনাফা ( 10816 - 10000) টাকা = 816 টাকা

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2626 . Kamal is shorter than Ruhan, but taller than Anika, Dina is shorter than Kamal . Rubayet is shorter than Ruhan but taller than Kamal . Who is tallest in terms of height ?

2627 . Kamal started a business investing Th 9000. After five months, Sammer joined with a capital profit of Tk. 6970, then what will be the share of Sammer in the profit?

2628 . Kamal weights twice as much as Momen. Momen's weight is 70% of Babu's weight. Dipu weights 50% of Lipu's weight . Lipu weights 180% of Kamal's weight. Who weights the least ?

2629 . Kamal went to a shop and bought things worth Tk 25, out of which 30 pasa went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?

2630 . Karim's school is 10 kms from his home. From there he travels 4 kms to get his friend's house and then travels 3 kms to get to the cricket ground. If he is then x miles from home, what is the range of possible values of x?

2631 . Karim, Rahim, Ram & Shyam have the following probabilities of passing the admission test 20%, 30%, 25% and 50% respectively. What is the probability of Karim, Rahim and Shyam will pass the test?

2632 . Karim and Babu can build a wooden table in 3 days. Babu can do it alone in 5 days. How many days would it take Karim to do this job alone?

2633 . Karim can buy single poster boards for 80 paisa each or a package of 12 poster boards for Taka 7.50. How much more (in Taka) would Karim have to pay for 3 dozen poster boards if he buys them individually than if he buys them in packages?

2634 . Karim drove for h hours at a constant rate of r miles per hour . How many miles did he go during the final 20 minutes of his drive ?

2635 . Karim has bought some pens for 120 taka. If each pen cost him 2 taka less then he could buy 2 more pens. How many pens did he buy?

2636 . Karim has exactly 3 times as many Bangladesh as non-Bangladesh stamps in his collection . Which of the following cannot be the number of stamps in Karim's collection ?

2637 . Kibria went to the swtationers and bought things worth Tk 25 out of which 30 paisa was sales tax on taxable items. If the tax rate is 6% , then what was the cost of the tax free items?

2638 . Kiran purchased a scooter for Tk.52000. He sold it at loss of 10%. With that money he purchased another scooter and sold it at profit of 20%. What is his overall loss profit?

2639 . Kona deposited Tk. 505 into her savings account. If the interest rate of the account is 5% per year, how much interest will she have made after 4 years?

2640 . Laboni bought a 1 year, Tk. 10,000 certificate of deposit that paid interest at an annual rate of 8 percent compounded semiannually. What was the total amount of interest paid on his certificate at maturity?

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