# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 740 - 746 of 989

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## Question 740

Edit

### Question

MCQ▾

The radius of a sphere is increased by X%. Its surface area increased by

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 741

Edit

### Question

MCQ▾

The distance of the point from the origin is

### Choices

Choice (4)Response

a.

units

b.

units

c.

Both a. and b. are correct

d.

None of the above

## Question 742

Mathematics
Edit

### Question

MCQ▾

Which of the following rational numbers is in the standard form?

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 743

Mathematics
Edit

### Question

MCQ▾

The sides of a triangle are in the ratio of 14: 15: 16 and its perimeter is 90 cm. Then the area of the triangle is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 744

Mathematics
Edit

### Question

MCQ▾

When two dice are thrown, the probability of getting a number always greater than 2 on the second dice is

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question 745

Edit

### Question

MCQ▾

A top is of the shape of a cone over a hemisphere. The radius of the hemisphere is 28 cm. The total height of the top is 124 cm. The total area of top is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 746

Mathematics
Edit

### Question

MCQ▾

If then t equals to

### Choices

Choice (4)Response

a.

b.

c.

d.