1126 . 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%?

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

বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩

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%

1128 . 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?

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%

1129 . 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

1130 . 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 sele, 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

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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

1131 . A toy was bought for Tk. 75 and sold at a gain of 8%. What was its selling price in Tk.?

A. 78
B. 81
C. 80
D. 84

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Answer: Option B

Explanation:

Hints: Selling price at 8% gain = 75 + 75 × 8/100 = 75 + 6 = 81

1132 . A trader buys some goods for Tk. 150. If the overhead expenses be 12% of cost price, then at what price should it be sold to earn 10%?

A. Tk. 188.80
B. Tk. 185.80
C. Tk. 187.80
D. Tk. 184.80

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Answer: Option D

Explanation:

দ্রব্যের ক্রয়মূল্য 150 টাকা

অতিরিক্ত ব্যয়ভার ( 150 এর 12%) টাকা

= ( 150 × 12/100) = 18 টাকা

মোট খরচ ( 150 + 18) টাকা বা 168 টাকান

10% লাভে বিক্রয়মূল্য ( 168 + 168 এর 10%) = 168 + 16.8 = 184.80 টাকা

1133 . A trader marked the price of a article 30% above the cost price and gave the buyes 10& discount on market price, thereby gaining Tk. 340. The cost of the article is?

A. 3000
B. 2000
C. 1900
D. 1800

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Answer: Option B

Explanation:

মনে করি,

দ্রব্যটির ক্রয়মূল্য = ১০০ টাকা

সুতরাং, তালিকা মূল্য = ১০০ + ৩০ = ১৩০ টাকা

অতএব, দ্রব্যটির কমিশন মূল্য অর্থাৎ বিক্রয়মূল্য = ১৩০ - ১৩০ × ১০/১০০ টাকা = ১৩০ - ১৩ টাকা = ১১৭ টাকা

লাভ = ( ১১৭ - ১০০) = ১৭ টাকা

১৭ টাকা লাভ হয় যখন ক্রয়মূল্য ১০০ টাকা

৩৪০ টাকা লাভ হয় যখন ক্রয়মূল্য = ১০০ × ৩৪০/১৭ = ২০০০ টাকা।

1134 . A trader raised the price of his product by 10% and then he lowered the enhanced price by 10%. Compared to the latest price the first price has been--

A. lowered by 1%
B. kept equal
C. enhanced by 1%
D. enhanced by 4%

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Answer: Option A

Explanation:

Let's call the original price of the product "P".

The trader raised the price of the product by 10%, so the new price would be P + (P * 0.10) = 1.10P.

The trader then lowered the enhanced price by 10%, so the latest price would be 1.10P - (1.10P * 0.10) = 0.99P.

To compare the latest price to the original price, we can divide the latest price by the original price and multiply by 100 to get the percentage:

Percentage = (0.99P / P) * 100
Percentage = 99%

So the latest price is 99% of the original price. This means that, compared to the latest price, the original price has been raised by 1%.

1135 . A trader sells his goods at a discount 20% . He still makes a profit of 25% . If he sells the goods at the marked price only, his profit will be:

A. 56. 25%
B. 25.56 %
C. 50.25%
D. 54.25%v

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Answer: Option A

Explanation:

Let the marked price = Tk. 100
Then, SP = 100 - 20% of 100 = Tk. 80
Profit = 25%
Let His CP = X
SP = 80
X + 25% of X = 80
Hence, X = Tk. (100 × 80)/125
= Tk. 64
CP = Tk. 64
Profit after selling on marked price = 100 - 64 = Tk. 36
% gain = (36 × 100)/64
= 56.25%

সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. 16.64%
B. 18.65%
C. 15.48%
D. 16%

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Answer: Option A

Explanation:

In such question we adopt the Required gain %
= [(100 + common gain%)2 / 100 - 100] %
= { (108)2/100 - 100 } % = 16.64%

1137 . A tradesman sold an article at a loss of 0%. If the selling price had been increased by 100 taka, there would have been a gain of 5%. What was the cost price of the article?

A. 375 taka
B. 400 taka
C. 425 taka
D. 450 taka

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Answer: Option B

Explanation:

The correct option is C 400 rupees
Let C.P. of article be x rupees. Then,
(105% of x)−(80% of x)=100
⇒25% of x=100
⇒x=400
So, C.P. =400 rupees

সিকিউরিটি প্রিন্টিং কর্পোরেশন বাংলাদেশ | সহকারী ব্যবস্থাপক- 26-11-2021

A. 66 km/hr
B. 54 km/hr
C. 48 km/hr
D. 82 km/hr

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Answer: Option D

Explanation:

ধরি, দ্বিতীয় ট্রেনটির গতি x km/hr

6/60× 60 = (108/1000) + (112 /1000) / x + 50

1/600 = ( 220/1000) / x + 50

1/600 = 22/100( x + 50)

1/6 = 22/ x + 50

x + 50 = 6 × 22

x = 132 - 50

x = 82

1139 . A train 120 meter long is traveling at a speed of 60 km/h. The time in which it will pass a passersby , walking at 6 km/h in the same direction is -

A. 3 sec
B. 9 sec
C. 8 sec
D. 6 sec

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Answer: Option C

Explanation:

Bangladesh Bank - Officer - 2015

A. 45 km/hr
B. 50 km/hr
C. 54 km/hr
D. 55 km/hr

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Answer: Option B

Explanation:

Given:

Length of train = 125 m

Time taken = 10 secs

Speed of man = 5 km/hr

Concept Used:

When 2 objects are moving in same direction, then

Relative speed = Difference between their speeds

Formula Used:

Speed = Distance/Time

1 Km/hr = (5/18)/s

Calculations:

Let the speed of train be v km/hr.

Speed of the man = 5 km/hr

Now, (v-5) × (5/18) = (125/10)

বা, (v-5) = (125/10) × (18/5) = 45 km/hr

বা, v = (45+5)= 50 km/hr.

সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

1126 . 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%?

1127 . 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 :

1128 . 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?

1129 . 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?

1130 . 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 sele, what would be the lowest possible price of a toy costing Tk.16 before any discount?

1131 . A toy was bought for Tk. 75 and sold at a gain of 8%. What was its selling price in Tk.?

1132 . A trader buys some goods for Tk. 150. If the overhead expenses be 12% of cost price, then at what price should it be sold to earn 10%?

1133 . A trader marked the price of a article 30% above the cost price and gave the buyes 10& discount on market price, thereby gaining Tk. 340. The cost of the article is?

1134 . A trader raised the price of his product by 10% and then he lowered the enhanced price by 10%. Compared to the latest price the first price has been--

1135 . A trader sells his goods at a discount 20% . He still makes a profit of 25% . If he sells the goods at the marked price only, his profit will be:

1136 . A tradesman by means of a false balance defrauds to the extent of 8% in buying goods and also defrauds to 8% is selling. His gain percent is--

1137 . A tradesman sold an article at a loss of 0%. If the selling price had been increased by 100 taka, there would have been a gain of 5%. What was the cost price of the article?

1138 . A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is --

1139 . A train 120 meter long is traveling at a speed of 60 km/h. The time in which it will pass a passersby , walking at 6 km/h in the same direction is -

1140 . A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is;

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