# Geometry [NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics]: Questions 1 - 5 of 29

Access detailed explanations (illustrated with images and videos) to 425 questions. Access all new questions- tracking exam pattern and syllabus changes. View the complete topic-wise distribution of questions. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 300.00 or

How to register?

## Question number: 1

» Geometry

Edit
MCQ▾

### Question

Three spherical balls of radius 3 cm, 4 cm and 5 cm are melted to form a single spherical ball. In the process, the loss of material is 50%. The radius of the new ball is

### Choices

Choice (4)Response

a.

15 cm

b.

10.4 cm

c.

12.1 cm

d.

7 cm

## Question number: 2

» Geometry

Edit
MCQ▾

### Question

Three spherical balls of radius 2 cm, 4 cm and 6 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is

### Choices

Choice (4)Response

a.

6 cm

b.

5 cm

c.

2 cm

d.

3 cm

## Question number: 3

» Geometry

Edit
MCQ▾

### Question

Three spherical balls of radius 1 cm, 2 cm and 3 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is

### Choices

Choice (4)Response

a.

6 cm

b.

2 cm

c.

5 cm

d.

3 cm

## Question number: 4

» Geometry

Edit
MCQ▾

### Question

If the length of rectangle is diminished in the ratio 8: 7 and its breadth is increased in the ratio 5: 6 then its area will be increased in the ratio

### Choices

Choice (4)Response

a.

7: 8

b.

20: 21

c.

14: 15

d.

6: 5

## Question number: 5

» Geometry

Edit
MCQ▾

### Question

If the length of rectangle is increased in the ratio 2: 3 and its breadth is reduced in the ratio 7: 2 then its area will be reduced in the ratio

### Choices

Choice (4)Response

a.

10: 7

b.

21: 4

c.

7: 6

d.

7: 3

Developed by: