1126 . A speed of 14 meters per second is the same as-

A. 50 km/hr
B. 46.6 km/hr
C. 28 km/hr
D. 70 km/hr

View Answer	Favorite Question

Answer: Option A

Explanation:

14m/sec = 14×(18/5)km/hour

= 50.4 km/hour

1127 . A sport club has 50 members. Of these. 35 play golf, 30 play soccer and 18 play both golf and soccer. How many members do play nether golf nor soccer?

A. 8
B. 5
C. 3
D. 17

View Answer	Favorite Question

Answer: Option C

Explanation:

only golf = 35-18= 17

only soccer= 30-18= 12

Both play= 18

So,at least one play= 17+12+18= 47

So, not any play= 50-47= 3

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 150
B. 180
C. 300
D. 330

View Answer	Favorite Question

Answer: Option D

Explanation:

1129 . A square is inscribed in a circle of diameter 2a and another square is circumscribing circle. The difference between the areas of outer and inner squares is:

A. a^2
B. 2a^2
C. 3a^2
D. 4a^2

View Answer	Favorite Question

Answer: Option B

Explanation:

To find the difference between the areas of the outer square and the inner square, you can use the following approach:

Let the side length of the inner square be "x," and the side length of the outer square be "y." Since the inner square is inscribed in the circle, its diagonal is equal to the diameter of the circle, which is 2a. Using the Pythagorean theorem, we can relate x and the radius (a) of the circle:

x^2 + x^2 = (2a)^2 2x^2 = 4a^2 x^2 = 2a^2 x = a√2

Now, the side length of the outer square (y) is equal to the diameter of the circle, which is 2a:

y = 2a

To find the difference in their areas:

Area of outer square - Area of inner square = y^2 - x^2

Substitute the values of y and x:

(2a)^2 - (a√2)^2 = 4a^2 - 2a^2 = 2a^2

So, the difference between the areas of the outer square and the inner square is 2a^2.

Sonali- Rupali- Bangladesh Krishi- Rajshahi krishi unnayn-Investment Corporation of Bangladesh | 30.11.2018

A. 34 m
B. 1156 m
C. 136 m
D. Cannot be determined

View Answer	Favorite Question

Answer: Option C

Explanation:

বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

A. TK. 9000
B. TK. 8500
C. TK. 8000
D. TK. 7500
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Let, the capital of B = x tk

According to the question,

(3500×12) /7x = 2/3

14x = 3500×12

x = ( 3500×12×3)/14

x = 9000 Tk.

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

A. 30%
B. 40%
C. 25%
D. 50%
E. None of these

View Answer	Favorite Question

Answer: Option E

Explanation:

(2 + 3) বা 5 বছরে সুদাসল = 300
এবং বছর পর সুদাসল = 240
3 জছরের সুদ = 60

1133 . A stock is currently at Tk. 40 per share. If the price increases by 20 percent and then decreases by 25 percent, what will be the new value of the share?

A. Tk. 36
B. Tk. 40
C. Tk. 48
D. Tk. 30

View Answer	Favorite Question

Answer: Option A

Explanation:

Sonali &amp- Janata Bank Ltd. Senior Officer (IT/ICT) 08.06.2018

A. 5.50
B. 7.60
C. 11.00
D. 12.10

View Answer	Favorite Question

Answer: Option B

Explanation:

1135 . A student answers 69 questions in an exam. He makes twice as many mistakes as he makes correct answers. How many questions did he get right? (একটি পরীক্ষায় একজন শিক্ষার্থী ৬৯টি প্রশ্নের উত্তর দেয়। সে যতটি প্রশ্নের সঠিক উত্তর দেয় তার চেয়ে দ্বিগুণ ভুল করেন। সে কতটি প্রশ্নের উত্তর সঠিক করতে পেরেছিল?)

A. 23
B. 26
C. 34
D. 46

View Answer	Favorite Question

Answer: Option A

Explanation:

Dutch Bangla Bank || Sales Manager (18-09-2024) || 2024

A. 40
B. 50
C. 75
D. 100

View Answer	Favorite Question

Answer: Option B

Explanation:

Suppose, Total marks = 100

20% reduced = 80

Then, 20% increased = 80 + 80 of 20% = 96

Difference = 100 - 96 = 4

4 difference then orginal number = 100

8 difference then orginal number = (100×8)/4

= 200

20% increased = 96%

Difference between two new number= 96-80 = 16

Difference is 16 when the original number is 100

,, ,, 8 ,, ,, = 50

Answer : 50

1137 . A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer . If he answers all the 60 questions in an exam and scores 39 marks , how many of them were correct ?

A. 33
B. 31
C. 27
D. 37

View Answer	Favorite Question

Answer: Option A

Explanation:

ধরি, সঠিক উত্তর দেওয়ার প্রশ্ন সংখ্যা x
⸫ 2x – (60 – x) × 1 = 39
⇒ 2x – 60 + x = 39
⇒ 3x = 99 ⸫ x = 33

Bangladesh Bank - Assistant Director - 2015

A. 27
B. 31
C. 33
D. 37

View Answer	Favorite Question

Answer: Option C

Explanation:

ধরি, সঠিক উত্তর দেওয়ার প্রশ্ন সংখ্যা x
⸫ 2x – (60 – x) × 1 = 39
⇒ 2x – 60 + x = 39
⇒ 3x = 99

⸫ x = 33

1139 . A student makes twice as many mistake as he makes correct answer in an exam. For each wrong answer $\frac{1}{4}$ is deducted from his score. If he scores 20 in the exam, how many questions did he attempt in the exam? (একজন শিক্ষার্থী পরীক্ষায় সঠিক উত্তরের চেয়ে দ্বিগুণ ভুল করে। তার স্কোর থেকে প্রতিটি ভুল উত্তরের জন্য $\frac{১}{৪}$ কাটা হয়। যদি সে পরীক্ষায় ২০ নম্বর পায়, তাহলে সে পরীক্ষায় কতটি প্রশ্নের উত্তর করেছিল?) ..

A. 60
B. 120
C. 180
D. 200

View Answer	Favorite Question

Answer: Option B

Explanation:

Dutch Bangla Bank || Sales Manager (18-09-2024) || 2024

A. 34%
B. 44%
C. 54%
D. 64%

View Answer	Favorite Question

Answer: Option D

Explanation:

1126 . A speed of 14 meters per second is the same as-

1127 . A sport club has 50 members. Of these. 35 play golf, 30 play soccer and 18 play both golf and soccer. How many members do play nether golf nor soccer?

1128 . A sport goods store ordered an eual number of white and yellow tennis balls.The tennis ball company delivered 30 extra tennic ,making the ratio of white balls to yellow balls 6:5.How many tennic hall did the sport goods store originally order?

1129 . A square is inscribed in a circle of diameter 2a and another square is circumscribing circle. The difference between the areas of outer and inner squares is:

1130 . A square park is surrounded by a path of uniform width 2 meters all around it. The area of the path is 288 sq. meters. Find the perimeter of the park.

1131 . A starts business with TK. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2:3. What is B's contribution in the capital?

1132 . A stock decreases in value by 25%. By what percent must the value of that stock increase to reach its former value ?

1133 . A stock is currently at Tk. 40 per share. If the price increases by 20 percent and then decreases by 25 percent, what will be the new value of the share?

1134 . A store raised the price of an item by exactly 10 percent. Which of the following could not be the resulting price of the item in taka?

1136 . A student first reduced a number by 20 percent and then increased it again by 20 percent. If the difference between the two new numbers was 8, then what is the original number?

1137 . A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer . If he answers all the 60 questions in an exam and scores 39 marks , how many of them were correct ?

1138 . A student loses I mark for every wrong answer and scores 2 marks for every correct answer . If he answers all the 60 questions in an exam and scores 39 marks , how many of them were correct?

1140 . A student multiplied a number by 3/5 insted of 5/3. What is the percentage of error in the calculation?

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