Mathematics Questions & Answers for Competitive Exams

821. When 12 is subtracted from a number, it reduces to its 40%. Two-fifth of that number is:

(A) 20
(B) 12
(C) 8
(D) 50

822. A cube of edge 4 cm is cut into cubes each of edge of 2 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to:

(A) 1 : 64
(B) 1 : 16
(C) 1 : 4
(D) 1 : 8

823. A line from point A is drawn that is tangent to the circle at point B. A secant is also drawn from point A to the circle intersecting it at points C and D. If AB = 42 cm and AC = 21 cm, then what is the ratio between AB and CD?

(A) 2 : 3
(B) 2 : 5
(C) 3 : 2
(D) 3 : 4

824. In an isosceles triangle ABC, AB=AC. D is a point inside the triangle such that ∠BAD = 20° = ∠DCB, ∠CAD = 80°. The value of ∠ABC is:

(A)
(B)
(C)
(D)

825. A vendor buys 20 dozen bananas for ₹1,200 and sells 5 dozen for ₹350, then his gain percentage is:

(A)
(B)
(C)
(D)

826. After an increase of 9% in salary, a person received ₹6,300. What was his salary before the increase (consider integral part only)?

(A) ₹3,879
(B) ₹5,779
(C) ₹5,000
(D) ₹4,000

827. The ratio of the outer and the inner circumference of a circular path is 7:6. If the path is 45 m wide, then what is the radius (in m) of the inner circle?

(A) 240
(B) 120
(C) 150
(D) 270

828. If x ∶ y = 5 ∶ 6,then 2x + 3y ∶ 3x + 5y is:

(A)
(B)
(C)
(D)

829. A certain sum of money is lent out at simple interest. If that money becomes ₹24,000 in 2 years and ₹32,000 in 4 years, the annual rate of interest is:

(A) 30%
(B) 16%
(C) 25%
(D) 20%

830. A policeman was asked to chase a thief. Before the policeman started the chase, he realised that the thief was 200 metres ahead of him and was running at a speed of 16 km/h. The policeman started the chase at a speed of 20 km/h. How far will the thief run before he is overtaken by the policeman?

(A) 1000 m
(B) 700 m
(C) 800 m
(D) 600 m

Total Quizz:- 2541

Mathematics

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821. When 12 is subtracted from a number, it reduces to its 40%. Two-fifth of that number is:

822. A cube of edge 4 cm is cut into cubes each of edge of 2 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to:

823. A line from point A is drawn that is tangent to the circle at point B. A secant is also drawn from point A to the circle intersecting it at points C and D. If AB = 42 cm and AC = 21 cm, then what is the ratio between AB and CD?

824. In an isosceles triangle ABC, AB=AC. D is a point inside the triangle such that ∠BAD = 20° = ∠DCB, ∠CAD = 80°. The value of ∠ABC is:

825. A vendor buys 20 dozen bananas for ₹1,200 and sells 5 dozen for ₹350, then his gain percentage is:

826. After an increase of 9% in salary, a person received ₹6,300. What was his salary before the increase (consider integral part only)?

827. The ratio of the outer and the inner circumference of a circular path is 7:6. If the path is 45 m wide, then what is the radius (in m) of the inner circle?

828. If x ∶ y = 5 ∶ 6,then 2x + 3y ∶ 3x + 5y is:

829. A certain sum of money is lent out at simple interest. If that money becomes ₹24,000 in 2 years and ₹32,000 in 4 years, the annual rate of interest is:

Total Quizz:- 2541

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821. When 12 is subtracted from a number, it reduces to its 40%. Two-fifth of that number is:

822. A cube of edge 4 cm is cut into cubes each of edge of 2 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to:

823. A line from point A is drawn that is tangent to the circle at point B. A secant is also drawn from point A to the circle intersecting it at points C and D. If AB = 42 cm and AC = 21 cm, then what is the ratio between AB and CD?

824. In an isosceles triangle ABC, AB=AC. D is a point inside the triangle such that ∠BAD = 20° = ∠DCB, ∠CAD = 80°. The value of ∠ABC is:

825. A vendor buys 20 dozen bananas for ₹1,200 and sells 5 dozen for ₹350, then his gain percentage is:

826. After an increase of 9% in salary, a person received ₹6,300. What was his salary before the increase (consider integral part only)?

827. The ratio of the outer and the inner circumference of a circular path is 7:6. If the path is 45 m wide, then what is the radius (in m) of the inner circle?

828. If x ∶ y = 5 ∶ 6,then 2x + 3y ∶ 3x + 5y is:

829. A certain sum of money is lent out at simple interest. If that money becomes ₹24,000 in 2 years and ₹32,000 in 4 years, the annual rate of interest is:

Total Quizz:- 2541

Mathematics

English Topic Wise Quizz

Current Affairs Topic Wise Quizz

Hindi Topic Wise Quizz

Important Links

Subjects

Subjects

Exams