1216 . A tap can fill a tank in 6 hours . After half the tank is filled another simila tap is opened. What is the total time taken to fill the tank completely?

A. 3 h 30 m
B. 3 h 45 m
C. 4 h30 m
D. 4 h

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Answer: Option C

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সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021

A. lose Tk. 500
B. loss Tk. 1,000
C. save Tk. 1,500
D. save Tk. 1,000

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Answer: Option D

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1218 . A television service centre can process 8 television in 18 minutes. How many televisions can it process in 3 houres at this rate?

A. 150
B. 45
C. 80
D. 60

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Answer: Option C

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1219 . A third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two subjects together, how many marks did he get in Social Studies?

A. 88
B. 98
C. 60
D. 122

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Answer: Option C

Explanation:

Hints: ধরি, . math mark = m, social studies = s

1/3 m = 1/2s + 30

এবং, m + s = 240

m = 240 - s

তাহলে, 1/3(240 - s) = 1/2 s + 30

80 - s/3 = 1/2 s + 30

1/2s + s/3 = 80 - 30

3S + 2S / 6 = 50

5s = 300

S = 60

এখানে সঠিক উত্তর নাই

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1220 . A three of height 4 meter casts a show of length 6.5 meter what is the height of a house casting a show 26 meter long?

A. 14 meter
B. 17 meter
C. 15 meter
D. 16 meter

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Answer: Option D

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সাধারণ বীমা কর্পোরেশন || জুনিয়র অফিসার (12-07-2019)

A. 12
B. 13
C. 18
D. 30

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Answer: Option B

Explanation:

The rate for each worker can be expressed as 22/3 units per hour.

We can let n = the number of workers needed to produce 90 units per hour, and we have:

n(22/3) = 90

or,22n = 270

∴ n = 270/22 = 12.2,

so there must be at least 13 workers.(ans)

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দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 5
B. 8
C. 12
D. 13

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Answer: Option D

Explanation:

The rate for each worker can be expressed as 22/3 units per hour.

We can let n = the number of workers needed to produce 90 units per hour, and we have:

n(22/3) = 90

or,22n = 270

∴ n = 270/22 = 12.2,

so there must be at least 13 workers.(ans)

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1223 . A time study specialist has set the production rate for each worker on a job at 22 units every three hours. At this rate, what is the minimum number of workers that should be put on the job, if at least 90 units are to be produced per hour?

A. 5
B. 8
C. 12
D. 13
E. None of these

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Answer: Option D

Explanation:

The rate for each worker can be expressed as 22/7 units per hour.

let, n = the number of workers needed to produce 90 units per hour, and we have:

so, n(22/3) = 90

or, 22n = 270

∴n = 270/22 = 12.2, so there must be at least 13 workers.

ans: 13 workers

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1224 . A TK. 30,000 prize is to be divided among three employees in the ratio of 2:3:5 . What is the value of the smallest share ?

A. 9,000
B. 7,500
C. 6,000
D. 4,500

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Answer: Option C

Explanation:

ধরি,

অনুপাতের রাশিগুলোর মান = X

তাহলে,প্রদত্ত অনুপাত হবে 2X : 3X : 5X

প্রশ্নমতে,

বা,2X + 3X + 5X = 30000

বা,10X = 30000

বা,X = 3000

সুতরাং, smallest share is 2X = 2×3000

= 6000

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Bangladesh Bank - Officer - 2001

A. Tk 300
B. Tk 450
C. Tk 600
D. Tk 760
E. None of these

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Answer: Option C

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

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বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩

A. TK.100
B. TK.150
C. TK.200
D. TK.250
E. TK.300

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Answer: Option B

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Bangladesh Bank - Officer(Cash) - 2011

1227 . A total of x feet of fencing is to form three sides of a rectangular yard. What is the maximum possible area of the yard in terms of x?

A. $\frac{x^{2}}{9}$
B. $\frac{x^{2}}{4}$
C. $\frac{x^{2}}{8}$
D. $x^{2}$

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Answer: Option C

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Standard Bank Plc || Trainee Assistant Officer (15-03-2025) || 2025

A. 10%
B. 10.08%
C. 20%
D. 28%

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Answer: Option D

Explanation:

ধরি, towel এর দৈর্ঘ x

এবং towel এর প্রস্থ y

Towel এর দৈর্ঘ কমে হয় ( x - 20x/100) = 4x/5 একক

Towel এর প্রস্থ কমে হয় ( y - 10y/100) = 9y/10 একক

ক্ষেত্রফল = 4x/4 × 9y/10 বর্গ একক

= 18xy/25 বর্গ একক

ক্ষেত্রফল হ্রাসের হার = ( xy - 18xy/35/ xy × 100) %

= 28%

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সাধারণ বীমা কর্পোরেশন || সহকারী ব্যবস্থাপক (08-11-2024) || 2024

A. 10%
B. 10.08%
C. 20%
D. 28%
E. None of these

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Answer: Option D

Explanation:

Let, original length = x

and original breadth = y

Decrease in area = xy - ( 80x/100×90y/100) = ( xy - 18xy/25) = 7xy/25

Decrease % = ( 7xy/25 ×1/xy ×100%) = 28%

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1230 . A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a toy costing Tk. 16 before any discount?

A. Tk. 5.60
B. Tk. 7.20
C. Tk. 8.80
D. Tk. 9.60
E. none of them

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Answer: Option B

Explanation:

Let cost price(CP) of toy is 100 tk

And maximum profit 40%

Selling price at 40% discount is 100 - 40 = 60 tk

Selling price (SP) After Another additional 25% discount is

60 - 25% of 60

= 60 - 15

= 45

Now

If CP is 100tk then possible SP is 45tk

" " " 16tk " " " is (45×16)/100 = 7.2 tk

Ans. 7.2tk

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1216 . A tap can fill a tank in 6 hours . After half the tank is filled another simila tap is opened. What is the total time taken to fill the tank completely?

1217 . A tea merchant blends 2 kinds of tea, putting in 3 parts of a Tk. 25 per kg grade to 1 part of a Tk. 15 per kg. If the mixture is changed to 1 part of the Tk. 25 per kg grade to 3 parts of the less expensive grade, how much will the shop lose or save in blending 200 kg?

1218 . A television service centre can process 8 television in 18 minutes. How many televisions can it process in 3 houres at this rate?

1219 . A third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two subjects together, how many marks did he get in Social Studies?

1220 . A three of height 4 meter casts a show of length 6.5 meter what is the height of a house casting a show 26 meter long?

1221 . A time-study specialist has set the production rate for each worker on a certain job at 22 units every 3 hours. At this rate what is the minimum number of workers that should be put on the job if at least 90 units are to be produced per hour?

1222 . A time study specialist has set the production rate for each worker on a job at 22 units every therre hours. At this rate, what is the minimum number of workers that should be put on the job, if at least 90 units are to be produced per hour?

1223 . A time study specialist has set the production rate for each worker on a job at 22 units every three hours. At this rate, what is the minimum number of workers that should be put on the job, if at least 90 units are to be produced per hour?

1224 . A TK. 30,000 prize is to be divided among three employees in the ratio of 2:3:5 . What is the value of the smallest share ?

1225 . A total of Tk 1200 is deposited in two savings accounts for one year, part at 5% and the remainder at 7% interest rate. If Tk 72 was earned in interest, how much was deposited at 5%?

1226 . A total of TK. 450 is divided into equal shares. If kate receives four shares, Kevin received three shares, and Anna receives the remaining two shares, how much money did Kevin receive ?

1228 . A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is :

1229 . A towel, when bleached, was found to have lost 20% of its length and 10% of its breath . what is the percentage of decrease in area?

1230 . A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a toy costing Tk. 16 before any discount?

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