3076 . The purchasing price of 15 apples and selling price of 12 apples are the same then how much is the gain in percentage form?

A. 33.33%
B. 15%
C. 20%
D. 25%

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Answer: Option D

Explanation:

Purchasing price of each apple = 1/15

Selling price of each apple = 1/12

Gain percentage = (1/12 - 1/15) / (1/15) × 100% = (5 - 4)/60 / (1/15) × 100% = 1/60 × 15 × 100% = 25%

3077 . The radius of a wheel is 7 cm. How many revolutions will it make in travelling 44 kilometers:

A. 50,000
B. 10,00,000
C. 10,000
D. 1,00,000

View Answer	Favorite Question

Answer: Option D

Explanation:

One Bank Ltd || Special Cadre Officer (03-01-2025) || 2025

A. 125%
B. 40%
C. 80%
D. 12.5%

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Answer: Option A

Explanation:

(5/4)×100

= 125%

3079 . The ratio between the length and breadth of a field is 7 : 5. The perimeter of the field is 360 meter. What is the area of the field?

A. 31000 sq. meter
B. 31500 sq. meter
C. 7875 sq. meter
D. 8775 sq. meter

View Answer	Favorite Question

Answer: Option C

Explanation:

Let the length and breadth be 7x and 5x meters respectively.

Then, perimeter, 2(7x + 5x) = 360

or, 2×12x = 360

or, 24x = 360

or, x = 360/24 = 15

Area = length×breadth = 7x × 5x = 35x2 = 35×152 = 35×225 = 7875 m2

3080 . The ratio between the length and the perimeter of a rectangular plot is 1:3. What is the ratio between the length and breadth of the plot?

A. 1:2
B. 3:2
C. 2:1
D. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Hints: Let the length is x and breadth is y. Then perimeter = 2 ( x + y)

Now, x / 2(x + y) = 1/3

3x = 2x + 2y

x = 2y

x/y = 1/2 = 1 : 2

3081 . The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

A. 16 cm
B. 18 cm
C. 20cm
D. 24 cm
E. None of these

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Answer: Option B

Explanation:

Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. 3 : 4
B. 3 : 5
C. 4 : 3
D. None of these

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Answer: Option D

Explanation:

Hints: Let P age and Q age be 6x years and 7x years

Then, 7x - 6x = 4

x = 4

So the required ratio will be (6x + 4)/(7x + 4) = 28/32 = 7/8

3083 . The ratio between two numbers is 3:4 and their least common multiple is 180. What is the first number?

A. 15
B. 20
C. 45
D. 60
E. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

এ ধরনের math করতে হলে নিচের পদ্ধতিটি মনে রাখুন
3  ×  4  ×  x  =  180
so x  =  15
এবং সেই সংখ্যাটি  =  3  ×  15  =  45

3084 . The ratio of ages of a father and his son was 5 : 1. What is the age of the son after five years, if the ratio of their ages is 3 : 1 by this time?

A. 7
B. 10
C. 12
D. 14

View Answer	Favorite Question

Answer: Option B

Explanation:

Father = 5x

Son = x

So, ( 5x + 5) : ( x + 5) = 3 : 1

5x + 5)/ x + 5 = 3/1

5x + 5 = 3x + 15

2x = 10

x = 5

After 5 years son age = 5 + 5 = 10

3085 . The ratio of ages of a father and his son was 5:1. What is the age of the son after five years, if the ratio of their ages is 3:1 by this time ?

A. 7
B. 10
C. 12
D. 14
E. 16

View Answer	Favorite Question

Answer: Option B

Explanation:

Father = 5x

Son = x

So, ( 5x + 5) : ( x + 5) = 3 : 1

5x + 5)/ x + 5 = 3/1

5x + 5 = 3x + 15

2x = 10

x = 5

After 5 years son age = 5 + 5 = 10

Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 6
B. 8
C. 10
D. 12

View Answer	Favorite Question

Answer: Option B

Explanation:

No. of boys = 24× 1/ (1 + 2) = 24 ×1/3 = 8

No. of Girls = 24 × 2/3 = 16

How many boys = 16 - 8 = 8

3087 . The ratio of boys and girls in a class is 1:2 and the class as 24 students . How many boys would have to be admitted to the class in order to make the ratio of boys to girls 1 : 1?

A. 6
B. 8
C. 10
D. 12

View Answer	Favorite Question

Answer: Option B

Explanation:

Boys = 24 × 1 / 1 + 2 = 8

Girls = 16

Now, ( 8 + x) ; 16 = 1 : 1

gives x = 8

3088 . The ratio of boys and girls in a class is 4 : 5. If 10% of the boys and 20% of the girls failed in an examination, what percentage of students passed in the exam?

A. 80%
B. 82%
C. 85%
D. None

View Answer	Favorite Question

Answer: Option D

Explanation:

3089 . The ratio of boys and girls in a class is 4:5. If 10% of the boys and 20%of the girls failed in an examination, what percentage of students passed in the exam?

A. 85%

View Answer	Favorite Question

Answer: Option A

Explanation:

বিমান বাংলাদেশ এয়ারলাইন্স লিঃ নিয়োগ পরীক্ষা-২০১৮। গ্রাউন্ড সার্ভিস অ্যাসিসটেন্ট। ১৩.১০.২০১৮

A. 75
B. 45
C. 25
D. 95

View Answer	Favorite Question

Answer: Option B

Explanation:

ধরি, ছাত্রের সংখ্যা = 3x ও ছাত্রীর সংখ্যা = 7x
∴∴ 3x + 7x = 150
⇒⇒ 10x = 150
⇒⇒ x = 1501015010
⇒⇒ x = 15
∴∴ ছাত্রের সংখ্যা = (3×15)3×15 জন = 45 জন।

3076 . The purchasing price of 15 apples and selling price of 12 apples are the same then how much is the gain in percentage form?

3077 . The radius of a wheel is 7 cm. How many revolutions will it make in travelling 44 kilometers:

3078 . The ratio 5 :4 expressed as a percent equals

3079 . The ratio between the length and breadth of a field is 7 : 5. The perimeter of the field is 360 meter. What is the area of the field?

3080 . The ratio between the length and the perimeter of a rectangular plot is 1:3. What is the ratio between the length and breadth of the plot?

3081 . The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

3082 . The ratio between the present ages of P and Q is 6 : 7. If Q is 4 years older than P, what will be the ratio of the ages of P and Q after 4 years?

3083 . The ratio between two numbers is 3:4 and their least common multiple is 180. What is the first number?

3084 . The ratio of ages of a father and his son was 5 : 1. What is the age of the son after five years, if the ratio of their ages is 3 : 1 by this time?

3085 . The ratio of ages of a father and his son was 5:1. What is the age of the son after five years, if the ratio of their ages is 3:1 by this time ?

3086 . The ratio of boys and girls in a class is 1 : 2 and the classroom has 24 students. How many boys would have to be admited to make ratio of boys to girls 1 : 1?

3087 . The ratio of boys and girls in a class is 1:2 and the class as 24 students . How many boys would have to be admitted to the class in order to make the ratio of boys to girls 1 : 1?

3088 . The ratio of boys and girls in a class is 4 : 5. If 10% of the boys and 20% of the girls failed in an examination, what percentage of students passed in the exam?

3089 . The ratio of boys and girls in a class is 4:5. If 10% of the boys and 20%of the girls failed in an examination, what percentage of students passed in the exam?

3090 . The ratio of boys and girls in a school is to 7. If there are 150 boys and girls, how many boys are there?

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