Mathematics Questions & Answers for Competitive Exams

551. Rahul spends 70% of his income. His income increased by 15% and his expenditure increased by 7.5%. What is the percentage increase in his savings?

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

552. In ∆ABC, P and Q are the middle points of the sides AB and AC, respectively. R is a point on the segment PQ such that PR: RQ = 1:5. If PR= 6 cm, then BC = ____.

(A) 70 cm
(B) 66 cm
(C) 68 cm
(D) 72 cm

553. The radius of a sphere is increased by 25%. What is the increase per cent in surface area?

(A) 56.25%
(B) 36.45%
(C) 25.25%
(D) 15.55%

554. In the given figure, O is the centre of the circle, AE is the diameter and ∠AOC = 100°. The value of ∠CDE + ∠CEA is:

(A) 90°
(B) 80°
(C) 60°
(D) 100°

555. If the diameter of the base and curved surfaced area of a cylinder are 14cm and 352 cm2,respectively, then the total surface area of the cylinder is equal to:

(A) 660 cm2
(B) 760 cm2
(C) 754 cm2
(D) 654 cm2

556. A box filled with gift articles weighs 25 kg. If the weight of the box and the gift articles, respectively, are in the ratio 1 : 9, then the weight of the articles (in grams) is:

(A) 21500
(B) 22500
(C) 24500
(D) 23500

557. Convert 28% into the form of ratio.

(A) 25 : 7
(B) 18 : 7
(C) 7 : 25
(D) 7 : 18

558. If 70% of the cost price of an article is equal to 40% of its selling price, what is the profit percentage?

(A) 85%
(B) 80%
(C) 70%
(D) 75%

559. Three solid cubes of metal have sides 6 cm, 8 cm and 10 cm, respectively. They are melted to form a new cube. What is the surface area of this new cube?

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

560. Shankar covers a certain distance by a car driving at 40 km/h and he returns to the starting point riding on a scooter with a speed of 20 km/h. Find the average speed of the whole journey.

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

Total Quizz:- 2541

Mathematics

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551. Rahul spends 70% of his income. His income increased by 15% and his expenditure increased by 7.5%. What is the percentage increase in his savings?

552. In ∆ABC, P and Q are the middle points of the sides AB and AC, respectively. R is a point on the segment PQ such that PR: RQ = 1:5. If PR= 6 cm, then BC = ____.

553. The radius of a sphere is increased by 25%. What is the increase per cent in surface area?

554. In the given figure, O is the centre of the circle, AE is the diameter and ∠AOC = 100°. The value of ∠CDE + ∠CEA is:

555. If the diameter of the base and curved surfaced area of a cylinder are 14cm and 352 cm2,respectively, then the total surface area of the cylinder is equal to:

556. A box filled with gift articles weighs 25 kg. If the weight of the box and the gift articles, respectively, are in the ratio 1 : 9, then the weight of the articles (in grams) is:

557. Convert 28% into the form of ratio.

558. If 70% of the cost price of an article is equal to 40% of its selling price, what is the profit percentage?

559. Three solid cubes of metal have sides 6 cm, 8 cm and 10 cm, respectively. They are melted to form a new cube. What is the surface area of this new cube?

560. Shankar covers a certain distance by a car driving at 40 km/h and he returns to the starting point riding on a scooter with a speed of 20 km/h. Find the average speed of the whole journey.

Total Quizz:- 2541

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551. Rahul spends 70% of his income. His income increased by 15% and his expenditure increased by 7.5%. What is the percentage increase in his savings?

552. In ∆ABC, P and Q are the middle points of the sides AB and AC, respectively. R is a point on the segment PQ such that PR: RQ = 1:5. If PR= 6 cm, then BC = ____.

553. The radius of a sphere is increased by 25%. What is the increase per cent in surface area?

554. In the given figure, O is the centre of the circle, AE is the diameter and ∠AOC = 100°. The value of ∠CDE + ∠CEA is:

555. If the diameter of the base and curved surfaced area of a cylinder are 14cm and 352 cm2,respectively, then the total surface area of the cylinder is equal to:

556. A box filled with gift articles weighs 25 kg. If the weight of the box and the gift articles, respectively, are in the ratio 1 : 9, then the weight of the articles (in grams) is:

557. Convert 28% into the form of ratio.

558. If 70% of the cost price of an article is equal to 40% of its selling price, what is the profit percentage?

559. Three solid cubes of metal have sides 6 cm, 8 cm and 10 cm, respectively. They are melted to form a new cube. What is the surface area of this new cube?

560. Shankar covers a certain distance by a car driving at 40 km/h and he returns to the starting point riding on a scooter with a speed of 20 km/h. Find the average speed of the whole journey.

Total Quizz:- 2541

Mathematics

English Topic Wise Quizz

Current Affairs Topic Wise Quizz

Hindi Topic Wise Quizz

Important Links

Subjects

Subjects

Exams