1111 . A shopkeeper carns 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

View Answer	Favorite Question

Answer: Option A

Explanation:

Let the CP of book = Tk.x
Then, SP of book = (100 + 12) × x/100 = 112x/100
Now. the printed price = Tk.y
Then, after the discount, the SP
= (100−10) × y/100 = 90y/100
Since both SP are same.
Then, 112x/100 = 90y/100 = xy = 45/56
= 45 : 56.

সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

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

1112 . A shopkeeper combined X liters of a solution containing 10% of certain material Q, with 10 liters of another solution that contained 2% of that materiale Q, to produce Z liters of a solution that had 5% of Q. What is the value of X?

A. 5 liters
B. 6 liters
C. 7 liters
D. 8 liters
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Hints:

x লিটার Q উপাদান আছে = x এর 10/100 = x/10

10 লিটার Q উপাদান আছে = 10এর 2/100 = 1/5

Z লিটারে Q উপাদান আছে = ( x + 10) এর 5/100 = (x + 10)/20

শর্তমতে, x/10 + 1/5 = (x + 10) / 20

10x + 20 = 5x + 50

10x - 5x = 50 - 20

5x = 30

x = 6

1113 . A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Tk. 392, what was his profit ?

A. Tk. 18.20
B. Tk. 70
C. Tk. 72
D. Tk. 88.25

View Answer	Favorite Question

Answer: Option C

Explanation:

ধরি, ক্রয়মূল্য x টাকা

x + x × 2.25/100 = 392

1.225x = 392

x = 392/1.225

= 392 ×1000 /1225

x = 320

লাভ = 392 - 320 = 72 টাকা

1114 . A shopkeeper has sufficient money to buy 50 books. On reduction in the price of each book by Tk. 4, he could buy 10 books more. How much money does he has?

A. Tk. 1000
B. Tk. 1200
C. Tk. 1500
D. Tk. 2000

View Answer	Favorite Question

Answer: Option B

Explanation:

Let, per price = x

50 × x = (x-4) × 60

বা, 50x = 60x - 240

বা, -10x = -240

সুতরাং , x = 24

Amount of money he has

= (50 × 24) = 1200 TK .

বাংলাদেশ ব্যাংক || অফিসার (ক্যাশ) (21-07-2023)

A. 50 tk
B. 125 tk
C. 200 tk
D. 300 tk

View Answer	Favorite Question

Answer: Option C

Explanation:

7.5 % ক্ষতিতে দ্রব্যটির বিক্রয়মূল্য

= 100 - 7.5 = 92.5 টাকা

10% কমে দ্রব্যটির ক্রয়মূল্য = 100 - 10 = 90 টাকা

আবার, 20% লাবে দ্রব্যটির বিক্রয়মূল্য

= 90 + 90 এর 20%

= 90 + ( 90 × 20)/100 = 108 টাকা

∴ বিক্রয়মূল্য বেশি হয় = 108 - 92.5 = 15.5 টাকা

অর্থাৎ বিক্রয়মূল্য 15.5 টাকা বেশি হয় ক্রয়মূল্য = 100 টাকা

∴বিক্রয়মূল্য 31 টাকা বেশি হয় ক্রয়মূল্য

সমন্বিত ৬ ব্যাংক ও আর্থিক প্রতিষ্ঠান - সহকারী প্রোগ্রামার - 18.03.2021

A. 232
B. 260
C. 230
D. 330
E. None of them

View Answer	Favorite Question

Answer: Option C

Explanation:

দেওয়া আছে, কর সহ তালিকামূল্য = 460 টাকা
30% ছাড় এর পর বিক্রয়মূল্য হবে = (460 - 30% এর 460) = 322 টাকা
প্রশ্নে বলা হয়েছে, ছাড় দেয়ার পরও দোকানদারের 40% লাভ হয় । অর্থাৎ 40% লাভে বিক্রয়মূল্য = (100 + 40) = 140
বিক্রয়মূল্য 140 টাকা হলে ক্রয়মূল্য 100 টাকা
বিক্রয়মূল্য 322 টাকা হলে ক্রয়মূল্য = 230

1117 . A shopkeeper mixes two varieties of tea. One costing Tk.35 per kg and another at Tk.45 per kg in the ratio 3 : 2. If he sells the mixed variety at 41.60 per kg, his gain or loss percent is---

A. 4% gain
B. 4% loss
C. 20/3% gain
D. 20/3% loss

View Answer	Favorite Question

Answer: Option C

Explanation:

1118 . A shopkeeper purchase 15 mangoes for Tk. 10 and sells them at 10 mangoes for Tk. 15. Thus, he earns a profit of-

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

View Answer	Favorite Question

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%.

সমন্বিত ৫ ব্যাংক || অফিসার (ক্যাশ) (11-03-2022)

A. 10
B. 15
C. 20
D. 25

View Answer	Favorite Question

Answer: Option C

Explanation:

Let the price of 4 mangoes bought be X.

Price per mango bought = X/4

Price per mango sold = X/5

Loss = (X/4 - X/5) / (X/4) × 100% = (X/20) / (X/4) ×100% = 20%

1120 . A shopkeeper sells a pair of sunglasses at a profit of 25%. If he had bought it at 25% less and sold it for Tk. 10 less, he would have gained 40%. Determine the cost price of the pair of sunglasses.

A. Tk. 25
B. Tk. 50
C. Tk. 60
D. Tk. 75

View Answer	Favorite Question

Answer: Option B

Explanation:

ধরি, সানগ্লাসের ক্রয়মূল্য 100 টাকা
25% লাভে বিক্রয়মূল্য = 100 + 100 এর 25% = 100 + 25 = 125 টাকা
আবার, 25% কমে কিনলে ক্রয়মূল্য হতো (100 – 100 এর 25%) টাকা = (100 – 25) বা, 75 টাকা
সেক্ষেত্রে, 40% লাভে বিক্রয়মূল্য = 75 + 75 এর 40% = 75 + 30 = 105 টাকা
বিক্রয়মূল্যের পার্থক্য (125 – 105) বা 20 টাকা
বিক্রয়মূল্য 20 টাকা কম হলে মূল ক্রয়মূল্য 100 টাকা

∴ ‘’ 10 ” ” ” ” ” (100×10)/20 = 50 টাকা

1121 . A shopkeeper sold and item at 20% profit and another item at 10% loss. If the cost price of both the items is same, find overall profit percent.

A. 7.55%
B. 5%
C. 6.00%
D. 6.50%

View Answer	Favorite Question

Answer: Option B

Explanation:

Let, cost price of per item 100 Tk.

1st item sell price = 120

2nd item sell price = 90

Total cost price = 100 + 100 = 200

Total sell price = 120 + 90 = 210

Profit percentage = {(210 - 200)/200}×100 = 5% .

Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 130
B. 170
C. 173
D. None

View Answer	Favorite Question

Answer: Option D

Explanation:

9 সেকেন্ড এ তৈরি করে 30 টি স্টেপ

60 সেকেন্ড এ তৈরি করে ( 60 × 30 /9) = 200 টি স্টেপ

1123 . A short distance athlete has taken 60 sec to cover 100m. If he makes 30 steps in 9, sec how many steps has he taken in that time?

A. 130
B. 170
C. 173
D. None

View Answer	Favorite Question

Answer: Option D

Explanation:

He makes in 9 sec = 30 steps

So,he will make 60 sec = (30×60)/9 = 200 steps

1124 . A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2. How many of the smaller cubes have on exactly 2 sides>

A. 13
B. 27
C. 30
D. 12

View Answer	Favorite Question

Answer: Option D

Explanation:

A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2.

This means , we get a 3 x 3 x 3 cube
To get the the sides with just 2 faces painted, picture the edges of the each of the sides of the cube.
Apart from the corners(which have 3 faces painted), all other small cubes have 2 faces painted.

In total, we have 12 cubes of side 2 with exactly 2 sides painted

1125 . A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior's name is placed in the lottery 3 times, each junior's name, 2 times, and each sophomore's, 1 time. What is the probability that a senior's name will be chosen?

A. 1/8
B. 2/9
C. 2/7
D. 3/8
E. None of these

View Answer	Favorite Question

Answer: Option D

Explanation:

Total number of seniors' names = 3 x 100 = 300

Total number of juniors' names = 2 x 150 = 300

Total number of sophomores' names = 200

Total student names for lottery = 300 + 300 + 200 = 800

Probability of a senior's name to be chosen = 300 / 800 = 3/8

1111 . A shopkeeper carns 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

1112 . A shopkeeper combined X liters of a solution containing 10% of certain material Q, with 10 liters of another solution that contained 2% of that materiale Q, to produce Z liters of a solution that had 5% of Q. What is the value of X?

1113 . A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Tk. 392, what was his profit ?

1114 . A shopkeeper has sufficient money to buy 50 books. On reduction in the price of each book by Tk. 4, he could buy 10 books more. How much money does he has?

1115 . A shopkeeper lost 7.5% by selling an article. If he had bought it at 10% less and sold it for taka 31 more he would have gained 20%. Find the cost price of the article.

1116 . A shopkeeper marks an article at such a price that after allowing a discount of 30% on the tag price he makes a profit of 40% . If the tag price of the article including tax is Tk. 460 . then the cost price of that article is--

1117 . A shopkeeper mixes two varieties of tea. One costing Tk.35 per kg and another at Tk.45 per kg in the ratio 3 : 2. If he sells the mixed variety at 41.60 per kg, his gain or loss percent is---

1118 . A shopkeeper purchase 15 mangoes for Tk. 10 and sells them at 10 mangoes for Tk. 15. Thus, he earns a profit of-

1119 . A shopkeeper sells 5 mangoes at a price he bought 4 mangoes. What is the percentage (%) of loss or gain?

1120 . A shopkeeper sells a pair of sunglasses at a profit of 25%. If he had bought it at 25% less and sold it for Tk. 10 less, he would have gained 40%. Determine the cost price of the pair of sunglasses.

1121 . A shopkeeper sold and item at 20% profit and another item at 10% loss. If the cost price of both the items is same, find overall profit percent.

1122 . A short distance athelte has taken 60 sec to cover 100m. If he makes 30 steps in 9 sec,how many steps has he takenin that time?

1123 . A short distance athlete has taken 60 sec to cover 100m. If he makes 30 steps in 9, sec how many steps has he taken in that time?

1124 . A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2. How many of the smaller cubes have on exactly 2 sides>

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