# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 396 - 401 of 1128

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## Question 396

Mathematics
Edit

### Question

MCQ▾

The product of two rational numbers is . If one of the number is , then the other number is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 397

Mathematics
Edit

### Question

MCQ▾

While removing brackets the order in which the brackets are removed is

### Choices

Choice (4)Response

a.

{}, (), []

b.

[], {}, ()

c.

(), {}, []

d.

None of the above

## Question 398

Mathematics
Edit

### Question

MCQ▾

Identity element w. r. t. subtraction in integers is

### Choices

Choice (4)Response

a.

Does not exist

b.

- 1

c.

1

d.

0

## Question 399

Edit

### Question

MCQ▾

The solution of is

### Choices

Choice (4)Response

a.

2

b.

5

c.

d.

1

## Question 400

Edit

### Question

MCQ▾

The difference between the length and breadth of a rectangle is 46 m. If the perimeter is m, then the area is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 401

Mathematics
Edit

### Question

MCQ▾

In a , D is any point on AB and meets AC at E. If AD = 3.5 cm, DB = 3 cm and AE = 2 cm then AC = ________.

### Choices

Choice (4)Response

a.

6 cm

b.

3.7 cm

c.

6.5 cm

d.

4 cm