# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 707 - 713 of 989

Access detailed explanations (illustrated with images and videos) to 2000 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access & Unlimited Time!

View Sample Explanation or View Features.

Rs. 550.00 -OR-

## Question 707

Edit

### Question

MCQ▾

A cylindrical vessel contains 37.044 liters of liquid. Cost of painting its CSA at 3 paise/sq cm is Rs. 90.72. Then its total surface area is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 708

Mathematics
Edit

### Question

MCQ▾

If and then the value of is:

### Choices

Choice (4)Response

a.

121

b.

-91

c.

61

d.

181

## Question 709

Edit

### Question

MCQ▾

The diameter of a copper sphere is 24 cm. It is beaten and drawn into a wire of diameter 1.2 cm. The length of wire is ________.

### Choices

Choice (4)Response

a.

3200 cm

b.

1600 cm

c.

6400 cm

d.

4600 cm

## Question 710

Mathematics
Edit

### Question

MCQ▾

The mean of is 16. Then the value of x is

### Choices

Choice (4)Response

a.

Data is insufficient

b.

21

c.

Cannot be determined

d.

16

## Question 711

Mathematics
Edit

### Question

MCQ▾

The daily sale of milk (in liters) in a ration shop for six days is as follows:

42,70,59,60,38.5 and 51.5 The average daily sale is

### Choices

Choice (4)Response

a.

53.5

b.

70

c.

51.5

d.

67.5

## Question 712

Edit

### Question

MCQ▾

The base radius of a cylinder is times its height. The cost of painting its CSA at is Rs. 71.28. The volume of the liquid is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 713

Mathematics
Edit

### Question

MCQ▾

The mean of 20 observations is 12.5. By error, one observation was noted as -15 instead of 15. Then the correct mean is

### Choices

Choice (4)Response

a.

11.75

b.

11

c.

14

d.

None of the above