181 . A school has a total of 90 students. There are 30 students taking Physics, 25 taking English, and 13 taking both. Approximately what percentage of the students is taking either Physics of English?

A. 32 %
B. 36 %
C. 47 %
D. 51 %

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Answer: Option C

Explanation:

বাংলাদেশ ব্যাংক অফিসার ০২ -১২-২০২২

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99 ৳

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182 . A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is -

A. 45: 56
B. 45:51
C. 47 : 56
D. 47 : 51

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Answer: Option A

Explanation:

অফিসার (ক্যাশ ) - Sonali | Rupali | BD Krishi | Rajshahi Krishi Unnayn | Investment Corporation Of Bangladesh - ২৯. ০৩.২০১৯

A. 30%
B. 37%
C. 23%
D. 27%

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Answer: Option A

Explanation:

Let the cost price = Tk.100

Therefore, Selling price = 100×117100 = Tk.117100×117100 = Tk.117

Therefore, Marked price = 117×10090 = 130117×10090 = 130

Therefore, Profit Percentage = (130−100)100×100 = 30%

Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

A. 50%
B. 75%
C. 80%
D. 125%

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Answer: Option D

Explanation:

Let's calculate the cost price (CP) and selling price (SP) for the mangoes:

Cost Price (CP) of 15 mangoes = Tk. 10 Cost Price (CP) of 1 mango = Tk. 10 / 15 = Tk. 2/3

Selling Price (SP) of 10 mangoes = Tk. 15 Selling Price (SP) of 1 mango = Tk. 15 / 10 = Tk. 3/2

Now, let's calculate the profit percentage:

Profit per mango = Selling Price (SP) per mango - Cost Price (CP) per mango Profit per mango = (Tk. 3/2) - (Tk. 2/3) Profit per mango = (3/2) - (2/3) Profit per mango = (9/6) - (4/6) Profit per mango = (5/6)

Now, calculate the profit percentage:

Profit Percentage = (Profit per mango / Cost Price per mango) * 100 Profit Percentage = [(5/6) / (2/3)] * 100 Profit Percentage = [(5/6) * (3/2)] * 100 Profit Percentage = (15/12) * 100 Profit Percentage = (5/4) * 100 Profit Percentage = 125%

So, the shopkeeper earns a profit of 125%

185 . A sold a watch to B at a gain of 20% and B sold it to C at loss of 10%. If C bought the watch for TK.216 at what price did A purchase it?

A. Tk.200
B. Tk.216
C. Tk.250
D. Tk.376

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Answer: Option A

Explanation:

At 10% loss so 90% = 216 then 100% = 240

at 20% profit so 120% = 240 then 100% = 200 taka

Senior Officer- 8 Bank Recruitment Test 31-08-2018

A. 2 meter
B. 4 meter
C. 6 meter
D. 8 meter

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Answer: Option B

Explanation:

বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. 82
B. 85
C. 79
D. 78.75

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Answer: Option A

Explanation:

বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. 200
B. 250
C. 300
D. 450
E. 400

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Answer: Option A

Explanation:

Let, the original number = 100
20% reduced = 100 - 100 of 20% = 80
Then, 20% increased = 80 + 80 of 20% = 96
The difference = 96-80 = 16
16 difference then original number = 100
1 difference then original number = 100/16
8 difference then original number = (100×8)/16 = 50

Bangladesh Bank - Assistant Director - 2013 ||

A. Tk. 2050
B. Tk. 2500
C. Tk. 2125
D. Tk. 2245

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Answer: Option A

Explanation:

The sum = Tk. (6000 × 100)/(5 × 6) = Tk. 20000
Compound Interest = (20000 × 105/100 × 105/100) – 20000 = Tk. 2050. Ans: A

Officer (Cash) -Sonali Bank | BD Development | BD Krishi Bank - 12.10.2018

A. 20%
B. 15%
C. 5%
D. 30%
E. 0%

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Answer: Option A

Explanation:

দুই আলাদা % এর থেকে common 25% বিয়োগ দিয়ে result টি হবে যা অন্তত news অথবা paper দেখে।

যারা দেখে না = 100 - ( 65 + 40 - 25) = 20%

191 . A tank can be filled with water by two pipes A and B together in 36 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in -

A. 45 munutes
B. 60 munutes
C. 75 minutes
D. 90 munutes

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Answer: Option D

Explanation:

Let the pipes fill the tank in x minutes.
Part of the tank filled by pipes A and B in one minute: 1/36
Part of the tank filled by pipe A in 1 minute = 1/36−1/x
According to the question,
30 × (1/x) + (1/36−1/x) = 1
⇒30x + 10/9−40/x = 1
⇒10/x = 1/9
Hence, x = 90 minutes.

অফিসার (ক্যাশ ) - Sonali | Rupali | BD Krishi | Rajshahi Krishi Unnayn | Investment Corporation Of Bangladesh - ২৯. ০৩.২০১৯

A. 300
B. 500
C. 700
D. 600
E. None of them

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Answer: Option D

Explanation:

Let, Tk was deposited at 5%

so, (1200 - x) was at 7%

Total interest = 72 = . 5 × x + ( 1200 - x) ×. 07

= . 05x + 84 - . 07x

x (. 05 - . 07) = 72 - 84

x × ( - .02) = - 12

x = 12/.02 = 600

Bangladesh Bank - Assistant Director - 2012

A. 10%
B. 12.5%
C. 13.6%
D. 15%

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Answer: Option B

Explanation:

Let list price is 100
Selling price (SP) at discount = 100-28 = Rs 72
Therefore Cost price = 72/90 x 100 = 80
When chair is sold for Tk. 90
profit = 90/80 x 100 - 1= 12.5%

194 . A train 125 m long passes a person , running at 8 km / hr in the same direction in which the train is going in 25 seconds . The speed of the train is :

A. 22
B. 36
C. 30
D. 26

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Answer: Option D

Explanation:

Speed of the train relative to man = (125/25) m/sec = 5 m/sec.
[5 x (18/5)] km/hr = 18 km/hr.
Let the speed of the train be 'S' km/hr.
Then, relative speed = (S - 8) km/hr.
S - 8 = 18 = > S = 26 km/hr.

Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

A. 52
B. 56
C. 54
D. 58

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Answer: Option C

Explanation:

Speed of the first train = 150/15 = 10 mps.
speed of the second train = x mps.
According to the question:
x + 10 = (150 + 150)/8
x = 27.5 mps = 27.5 × 3600/1000 = 99 kmph. Ans: D

Senior Officer- 8 Bank Recruitment Test 31-08-2018

181 . A school has a total of 90 students. There are 30 students taking Physics, 25 taking English, and 13 taking both. Approximately what percentage of the students is taking either Physics of English?

182 . A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is -

183 . A shopkeeper gains 17% after allowing a discount of 10% on the marked price of an article . Find his profit percent if the article is sold at marked price allowing no discount .

184 . A shopkeeper purchase 15 mangoes for Tk. 10 and sells them at 10 mangoes for Tk. Thus, he earns a profit of-

185 . A sold a watch to B at a gain of 20% and B sold it to C at loss of 10%. If C bought the watch for TK.216 at what price did A purchase it?

186 . A square room has a square carpet symmetrically placed in it. This leaves an uncovered area of 9 meter2. The area of the whole romm is 25 meter2 . What is the length of the one side the carpet?

187 . A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in the final examination. The 3 monthly examinations are of equal weightage whereas the final examination is weighted . What is his average mark physics?

188 . A students first reduced a number by 20% and then increased it again by 20% . If the difference between the last number and the original number is 8, then the original number was :

189 . A sum fetches a simple interest of Tk. 6000 at the rate of 5% p.a. in 6 years . what would be the compound interest earned at the same rate of interest and the same principal in 2 years?

190 . A survey of the town Sherpur found that 70% of the people watched the news on TV, 35% of the people read the news on newspaper and watched the TV and 25% read a newspaper and watched the TV news. What percentage of the people either watched the news on TV nor read it on the newspaper?

191 . A tank can be filled with water by two pipes A and B together in 36 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in -

192 . A total of TaKa 1200 is deposited in two savings accounts for one year, part at 5% and the remainder at 7% . If TaKa 72 was earned in interest , how much was deposited at 5% ?

193 . A trader makes a loss of 10% by selling a chair at a discount of 28% on the listed price.What will be his loss/profit if he sells the chair at 90% of its listed price?

194 . A train 125 m long passes a person , running at 8 km / hr in the same direction in which the train is going in 25 seconds . The speed of the train is :

195 . A train 150 m long crosses a milestone is 15 seconds and crosses another train of the same lengh travelling in the opposite direction in 12 seconds. The speed of the second train in km/hr is.

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