Name of Section:

Officer (Freedom Fighter) 2019[MCQ]

11. 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 :

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. a^2

1

2. 2a^2

2

3. 3a^2

3

4. 4a^2

4
Answer
12. The income of ‘A‘ is 20% higher than that of ‘B‘. The income of ‘B‘ is 25% less than of ‘C‘. What percent less is A‘s income from C‘s income?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 7%

1

2. ৪%

2

3. 9%

3

4. 10%

4
Answer
13. (2√27 – √75 + √12) is equal to:

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 4√3

1

2. √3

2

3. 3√3

3

4. 2√3

4
Answer
14. There are n students in a school. If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are older than 12?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. n(1 – r)

1

2. n(100–r)/100

2

3. n(1 – r)/100

3

4. 100(1 – r)n

4
Answer
15. 125 gallons of a mixture contains 20% water. What amount of additional water should be added such that water content be raised to 25%?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 15/2 gallons

1

2. 17/2 gallons

2

3. 19/2 gallons

3

4. 8 1/3 gallons

4
Answer

Copyright ©LessonBD 2026

Contact: info@lessonbd.com