241 . Domain of a function is :

A. the maximal set of numbers for which a function is defined
B. the maximal set of numbers which a function can take values
C. it is the set of natural numbers for which a function is defined
D. any set of positive numbers

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Answer: Option A

Explanation:

Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

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

242 . Due to the recession, a show room reported that revenue from luxury car sales were down by 11% and revenue from economy car sales were up by 7%. If the total revenue were up by 1% then what is the ratio of revenue from luxury car sales to revenue from economy car sales?

A. 3 : 2
B. 11 : 7
C. 4 : 5
D. 1 : 2
E. None of these

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Answer: Option D

Explanation:

Let the usual revenues be L and E respectively. So, total usual revenue is (L + E).

New revenue from luxury car sales = L - 11% of L = L - 0.11L = 0.89L

New revenue from economy car sales = E - 7% of E = E - 0.07E = 1.07E

New total revenue = 0.89L + 1.07E

ATQ, {(0.89L + 1.07E) - (L + E)} / (L + E) = 1/100

or, 100(0.89L + 1.07E - L - E) = L + E

or, 100(0.07E - 0.11L) = L + E

or, 7E - 11L = L + E

or. 11L + L = 7E - E

or, 12L = 6E

or, L/E = 6/12 = 1/2

or, L : E = 1 : 2

243 . Eight years ago Mr. Karim was 1/3 th the age he will be after 10 years. What is his age now?

A. 18
B. 19
C. 20
D. 16
E. 17

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Answer: Option E

Explanation:

244 . Equal amounts of water were poured into two empty jars of different capacities, which made one jar 1/4 full and another jar 1/3 full.. If the water in the jar with the lesser capacity is then poured into the jar with the greatest capacity, what fraction of the larger jar will be filled with water?

A. 1/3
B. 1/4
C. 1/2
D. 1/5
E. None of these

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Answer: Option E

Explanation:

Evidently, 1/3 full jar is of the lesser capacity as 1/3 is greater than 1/4. As equal amount of water was poured into each jar, pouring water from the jar of lesser capacity to the larger jar will make the amount of water in the larger jar to get doubled.

Therefore, the fraction of larger jar filled with water will be = 2 x 1/4 = 1/2

245 . Everyone has their morning beverages differently . Rumana and Deepti both take sugar in their drinks. Rumana, Osman and Mahboob all drink tea while the other three drink coffee. Masud and Mahboob have milk in their beverages . Those who don't add anything , take their beverages black. What does Waquar drink ?

A. Tea with sugar
B. Coffee with milk
C. Black tea
D. Coffee with sugar
E. Black coffee

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Answer: Option E

Explanation:

From the given information, we can create a table to organize the data:

Name Beverage Sugar Milk

Rumana Tea Yes No

Deepti Coffee Yes No

Osman Tea No No

Mahboob Tea No Yes

Masud Coffee No Yes

(Unknown) Coffee/Tea ? No

We need to determine what Waquar drinks, and whether they add sugar and/or milk to their beverage. We can see that there are only two people left who have not been assigned a type of beverage: Waquar and the unknown person. Since Rumana, Osman, and Mahboob all drink tea, we can assume that the unknown person drinks coffee. This means that Waquar also drinks coffee, since all six people drink either tea or coffee.

Now we need to determine whether Waquar takes sugar and/or milk in their coffee. From the information given, we know that Deepti takes sugar in her coffee, and Mahboob and Masud have milk in their beverages. There is no information given about whether Waquar takes sugar or milk in their coffee, so we cannot determine this with certainty. Therefore, the answer is that we do not know whether Waquar takes sugar and/or milk in their coffee. We only know that they drink coffee

Bangladesh Bank - Assistant Director - 2013 ||

A. 14
B. 18
C. 21
D. 28
E. None

View Answer	Favorite Question

Answer: Option E

Explanation:

(0.1 × 0.01 × 0.001) / ( 0.2 ×0.02 × 0.002)

= 1/8

= 0.125

সঠিক উত্তর অপশনে নাই

247 . From a group of 7 men and 6 women, five persons are to be selected to from a committee so that at least 3 men are there on the committee. In how many ways can it be done ?

A. 564
B. 645
C. 735
D. 756
E. 749

View Answer	Favorite Question

Answer: Option D

Explanation:

Hence, the answer total number of ways to form a 5 member committee is 756.

Bangladesh Bank - Assistant Director - 2011

A. Tk.10350
B. Tk.10395
C. Tk.10500
D. Tk.11500
E. Tk.12705

View Answer	Favorite Question

Answer: Option B

Explanation:

a+b+(ab)/100

=10+5+(10×5)/100

=15.5%

Again,

a'+b'+(ab)'/100

=15.5-10-(15.5×10)/100

=3.95%

So, 10000+(10000×3.95%)=10395

(ans)

249 . Hasan can run 10 miles per hour, whilr Jack can run only 8 miles per hour. If they start at the same time from the same point and run is opposite direction, how far apart (to the nearest mile) will they be after 10 minutes?

A. 3 miles
B. 4 miles
C. 5 miles
D. 1 miles
E. 2 miles

View Answer	Favorite Question

Answer: Option A

Explanation:

250 . How many "8" will you pass on the way when you count from 1 to 100 ?

A. 11
B. 20
C. 80
D. 70
E. 10

View Answer	Favorite Question

Answer: Option B

Explanation:

1 to 100 "8" will come : 8, 18, 28, 38, 48, 58, 68, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 98 = 20

Bangladesh Bank - Assistant Director - 2013 ||

A. 4
B. 2
C. 5
D. 6

View Answer	Favorite Question

Answer: Option D

Explanation:

Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

A. 20 °
B. 120 °
C. 60 °
D. 100 °
E. 90 °

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Answer: Option B

Explanation:

The minute hand of a clock completes a full revolution of 360 degrees in 60 minutes, which means it moves 360 degrees in an hour.

To determine how many degrees the minute hand moves in 20 minutes, we can calculate the fraction of a full revolution that corresponds to 20 minutes.

20 minutes is one-third of an hour since 20 minutes / 60 minutes = 1/3.

Therefore, the minute hand moves one-third of a full revolution, which is one-third of 360 degrees:

(1/3) * 360 degrees = 120 degrees.

So, the minute hand moves 120 degrees in 20 minutes.

The correct answer is B. 120°.

Bangladesh Bank - Assistant Director - 2011

A. 25
B. 40
C. 50
D. 60
E. None of them

View Answer	Favorite Question

Answer: Option D

Explanation:

There are 6 digits among them 2 threes and 3 fours in them total numbers = 6!/(2!x3!) = 60

Bangladesh Bank - Assistant Director - 2012

A. HM
B. H/M
C. M/H
D. H/2M

View Answer	Favorite Question

Answer: Option C

Explanation:

Assit. Programmer | Sonali Bank- Rubali Bank- BD Krishi Bank - 16.11.2018

A. 13.33
B. 15
C. 20
D. 40

View Answer	Favorite Question

Answer: Option A

Explanation:

সময় = 10.15 - 9.55 = 20 মিনিট = 1/3 ঘণ্টা

∴ প্রয়োজনীয় দূরত্ব = গতি × সময় = 40 × 1/3 = 13.33 miles

সমন্বিত ৮ ব্যাংক | অফিসার | 21-01-2022

241 . Domain of a function is :

242 . Due to the recession, a show room reported that revenue from luxury car sales were down by 11% and revenue from economy car sales were up by 7%. If the total revenue were up by 1% then what is the ratio of revenue from luxury car sales to revenue from economy car sales?

243 . Eight years ago Mr. Karim was 1/3 th the age he will be after 10 years. What is his age now?

246 . Find the value of (0.1 × 0.01 × 0.001) ÷ (0.2 × 0.02 × 0.002)

247 . From a group of 7 men and 6 women, five persons are to be selected to from a committee so that at least 3 men are there on the committee. In how many ways can it be done ?

248 . Harun invested Tk,10000 in Grameen Mutual Fund account exactly 3 years ago. The value of the account increased by 10% during the first year, increased by 5% in the second year and decreased by 10% during the third year. What is the value of the account today?

249 . Hasan can run 10 miles per hour, whilr Jack can run only 8 miles per hour. If they start at the same time from the same point and run is opposite direction, how far apart (to the nearest mile) will they be after 10 minutes?

250 . How many "8" will you pass on the way when you count from 1 to 100 ?

251 . How many bits string of length 4 are possible such that they contain 2 ones and 2 zeroes ?

252 . How many degrees does a minute hand move in 20 minutes?

253 . How many different six-digit numbers can be formed using all of the following digits : 3, 3, 4, 4, 4, 5 ........

254 . How many hours will it take a man to travel M miles at miles at the rate of H miles per hour?

255 . How many miles can motorist travel from 9.55 am to 10:15 am at a speed of 40 miles per hour?

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