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

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Question 396

Mathematics
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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
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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 = ________.

Triangle poly1Triangle poly1: Polygon A, B, CSegment cSegment c: Segment [A, B] of Triangle poly1Segment aSegment a: Segment [B, C] of Triangle poly1Segment bSegment b: Segment [C, A] of Triangle poly1Segment fSegment f: Segment [D, E] Point AA = (3.02,4.4) Point AA = (3.02,4.4) Point AA = (3.02,4.4) Point BB = (1.12,0.78) Point BB = (1.12,0.78) Point BB = (1.12,0.78) Point CC = (5.16,0.78) Point CC = (5.16,0.78) Point CC = (5.16,0.78) Point DPoint D: Point on cPoint DPoint D: Point on cPoint DPoint D: Point on cPoint EPoint E: Point on bPoint EPoint E: Point on bPoint EPoint E: Point on b

Image of a Triangle ABC in Which DE∥BC

Choices

Choice (4)Response

a.

6 cm

b.

3.7 cm

c.

6.5 cm

d.

4 cm