# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 579 - 586 of 1128

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## Question number: 579

» Mathematics » Triangle and Properties

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MCQ▾

### Question

If the two sides of a right-angled triangle are equal and the square of the hypotenuse is 288 cm then the length of each side is

### Choices

Choice (4)Response

a.

15 cm

b.

12 cm

c.

cm

d.

10.5 cm

## Question number: 580

» Mathematics » Algebraic Expressions

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MCQ▾

Value of x in

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 581

» Mathematics » Algebraic Expressions

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MCQ▾

### Question

Algebraic expression for the statement: ‘21 times x taken away from 89’.

### Choices

Choice (4)Response

a.

b.

0

c.

d.

## Question number: 582

» Mathematics » Triangle and Properties

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MCQ▾

### Question

In , S is midpoint of QR and G is the Centroid of the triangle. If GS = 5 cm, then the length of PS is

### Choices

Choice (4)Response

a.

15 cm

b.

5 cm

c.

10 cm

d.

None of the above

## Question number: 583

» Mathematics » Comparing Quantities

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MCQ▾

### Question

Komal borrowed Rs. 1500 at 3 % per annum for 2 years and Sonal borrowed Rs. 1800 at 2 % per annum for 3 years. Then the ratio of interests paid by them is

### Choices

Choice (4)Response

a.

6: 5

b.

5: 6

c.

5: 3

d.

3: 5

## Question number: 584

» Mathematics » Rational Numbers

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MCQ▾

### Question

Out of the rational number , , , which is smaller?

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question number: 585

» Mathematics » Perimeter and Area

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MCQ▾

### Question

If the area of a circle is 2A, radius of the circle is r and circumference of it is 3C, then

### Choices

Choice (4)Response

a.

AC =

b.

c.

d.

## Question number: 586

» Mathematics » Rational Numbers

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MCQ▾

### Question

For any two rational numbers a and b, which of the following properties are correct?

(I) (II) (III)

### Choices

Choice (4)Response

a.

Only (II) is correct

b.

Only (II) and (III) are correct

c.

Only (I) and (II) are correct

d.

All (I), (II) and (III) are correct

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