# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 578 - 588 of 1201

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## Question number: 578

Edit

MCQ▾

The value of is:

### Choices

Choice (4)Response

a.

6

b.

4.26

c.

9

d.

None of the above

## Question number: 579

Mathematics
Edit

### Question

MCQ▾

The base of an isosceles right triangle is 26 cm. Its area is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 580

Edit

### Question

MCQ▾

If , then x = ________.

### Choices

Choice (4)Response

a.

9

b.

3

c.

87

d.

16

## Question number: 581

Edit

MCQ▾

= ________.

### Choices

Choice (4)Response

a.

-2

b.

2

c.

8

d.

-8

## Question number: 582

Edit

MCQ▾

is:

### Choices

Choice (4)Response

a.

9

b.

-60

c.

30

d.

-30

## Question number: 583

Edit

### Question

MCQ▾

If is one factor of and , then ________.

### Choices

Choice (4)Response

a.

10

b.

2

c.

18

d.

12

## Question number: 584

Edit

### Question

MCQ▾

In which of the following pairs of numbers it is true that their sum is 12 times their product?

### Choices

Choice (4)Response

a.

1,

b.

1,

c.

1,

d.

1,10

## Question number: 585

Edit

MCQ▾

The value of is:

### Choices

Choice (4)Response

a.

b.

7

c.

d.

None of the above

## Question number: 586

Edit

### Question

MCQ▾

Which of the following statements is true?

### Choices

Choice (4)Response

a.

The diagonals of a rhombus are equal

b.

The diagonals of a rectangle are perpendicular

c.

Every square is a rhombus

d.

All of the above

## Question number: 587

Edit

MCQ▾

The value of is:

### Choices

Choice (4)Response

a.

169

b.

196

c.

225

d.

729

## Question number: 588

Edit

### Question

MCQ▾

A cask containing 325 liters lost 4 % by leakage and evaporation. The numbers of liters left in the case were:

### Choices

Choice (4)Response

a.

306

b.

312

c.

300

d.

298