Mathematics Questions & Answers for Competitive Exams

771. In ∆ DEW, AB∥EW. If AD = 4 cm, DE = 12 cm and DW = 24 cm, then find the length of DB.

(A) 7 cm
(B) 6 cm
(C) 9 cm
(D) 8 cm

772. The sum of the digits of a two−digit number is 9. The number obtained by interchanging its digits exceeds the given number by 45, then the original number is:

(A) 18
(B) 27
(C) 36
(D) 54

773. A vertical pole of length 6 m casts a 4 m long shadow on the ground. At the same time, a tower casts a 28 m long shadow. Find the height of the tower.

(A) 42 m
(B) 32 m
(C) 36 m
(D) 48 m

774. Three cubes each of side 5 cm are joined end to end. The surface area of the resulting cuboid is:

(A) 150 cm2
(B) 175 cm2
(C) 350 cm2
(D) 75 cm2

775. Pomegranate juice contains 10% sugar solution and orange juice contains 30% sugar solution. What is the percentage of sugar solution in a mixture of two litres of pomegranate juice and three litres of orange juice?

(A) 22%
(B) 25%
(C) 20%
(D) 40%

776. In an election, there were only two candidates. One of the candidates secured 44% of the votes and is defeated by the other candidate by 1440 votes. If there were no invalid votes. then the total number of votes polled is:

(A) 15000
(B) 12000
(C) 14000
(D) 13000

777. From a circle of radius r units, the largest equilateral triangle is cut out. What is the length (in units) of the side of the triangle?

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

778. By what percentage should a racer increase the speed to reduce the time by 25% to cover a fixed distance?

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

779. The population of a village was 4,00,000. It increased by 20% in the first year and increased by 30% in the second year. Its population after two years is _______.

(A) 6,25,000
(B) 6,24,000
(C) 5,40,000
(D) 5,20,000

780. A laptop charger is sold for Rs.2,540 in cash or for a down payment of Rs.1,340 in cash together with Rs.1,205 to be paid after one month. Find the rate of interest charged in the instalment scheme.

(A) 20% p.a.
(B) 10% p.a.
(C) 5% p.a.
(D) 15% p.a.

Total Quizz:- 2541

Mathematics

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771. In ∆ DEW, AB∥EW. If AD = 4 cm, DE = 12 cm and DW = 24 cm, then find the length of DB.

772. The sum of the digits of a two−digit number is 9. The number obtained by interchanging its digits exceeds the given number by 45, then the original number is:

773. A vertical pole of length 6 m casts a 4 m long shadow on the ground. At the same time, a tower casts a 28 m long shadow. Find the height of the tower.

774. Three cubes each of side 5 cm are joined end to end. The surface area of the resulting cuboid is:

775. Pomegranate juice contains 10% sugar solution and orange juice contains 30% sugar solution. What is the percentage of sugar solution in a mixture of two litres of pomegranate juice and three litres of orange juice?

776. In an election, there were only two candidates. One of the candidates secured 44% of the votes and is defeated by the other candidate by 1440 votes. If there were no invalid votes. then the total number of votes polled is:

777. From a circle of radius r units, the largest equilateral triangle is cut out. What is the length (in units) of the side of the triangle?

778. By what percentage should a racer increase the speed to reduce the time by 25% to cover a fixed distance?

779. The population of a village was 4,00,000. It increased by 20% in the first year and increased by 30% in the second year. Its population after two years is _______.

780. A laptop charger is sold for Rs.2,540 in cash or for a down payment of Rs.1,340 in cash together with Rs.1,205 to be paid after one month. Find the rate of interest charged in the instalment scheme.

Total Quizz:- 2541

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771. In ∆ DEW, AB∥EW. If AD = 4 cm, DE = 12 cm and DW = 24 cm, then find the length of DB.

772. The sum of the digits of a two−digit number is 9. The number obtained by interchanging its digits exceeds the given number by 45, then the original number is:

773. A vertical pole of length 6 m casts a 4 m long shadow on the ground. At the same time, a tower casts a 28 m long shadow. Find the height of the tower.

774. Three cubes each of side 5 cm are joined end to end. The surface area of the resulting cuboid is:

775. Pomegranate juice contains 10% sugar solution and orange juice contains 30% sugar solution. What is the percentage of sugar solution in a mixture of two litres of pomegranate juice and three litres of orange juice?

776. In an election, there were only two candidates. One of the candidates secured 44% of the votes and is defeated by the other candidate by 1440 votes. If there were no invalid votes. then the total number of votes polled is:

777. From a circle of radius r units, the largest equilateral triangle is cut out. What is the length (in units) of the side of the triangle?

778. By what percentage should a racer increase the speed to reduce the time by 25% to cover a fixed distance?

779. The population of a village was 4,00,000. It increased by 20% in the first year and increased by 30% in the second year. Its population after two years is _______.

780. A laptop charger is sold for Rs.2,540 in cash or for a down payment of Rs.1,340 in cash together with Rs.1,205 to be paid after one month. Find the rate of interest charged in the instalment scheme.

Total Quizz:- 2541

Mathematics

English Topic Wise Quizz

Current Affairs Topic Wise Quizz

Hindi Topic Wise Quizz

Important Links

Subjects

Subjects

Exams