# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 551 - 559 of 989

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## Question 551

Mathematics
Edit

### Question

MCQ▾

In a quadrilateral the sides are 8,15,13,18 units and the angle between first sides is a right angle. The area of quadrilateral is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 552

Mathematics
Edit

MCQ▾

equals

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 553

Mathematics
Edit

### Question

MCQ▾

A bag contains 6 blue and 9 black balls. If a ball is drawn at random, the probability that the drawn ball to blue is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 554

Mathematics
Edit

### Question

MCQ▾

The value of x from

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 555

Mathematics
Edit

### Question

MCQ▾

The mean of 15 numbers is 35. If 5 is added to each of the first five numbers, then the mean of the new set of 15 numbers is

### Choices

Choice (4)Response

a.

30

b.

45.51

c.

36.67

d.

37

## Question 556

Mathematics
Edit

### Question

MCQ▾

If and , then the value of is:

### Choices

Choice (4)Response

a.

704

b.

407

c.

470

d.

308

## Question 557

Mathematics
Edit

### Question

MCQ▾

The sides of a triangle are 22 cm, 30 cm and 32 cm. The altitude to largest side is

### Choices

Choice (4)Response

a.

b.

c.

cm

d.

## Question 558

Mathematics
Edit

### Question

MCQ▾

The rational number between and is:

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question 559

Mathematics
Edit

### Question

MCQ▾

In the following figure if AB = AC then find .

### Choices

Choice (4)Response

a.

b.

c.

d.