# KVPY Stream-SA (Class 11) Math: Questions 206 - 210 of 265

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## Question number: 206

» Basic Mathematics » Geometry » Triangle and Properties

MCQ▾

### Question

The number of values of a for which there is an isosceles triangle with sides of length , and is –

### Choices

Choice (4) Response

a.

1

b.

0

c.

2

d.

3

## Question number: 207

MCQ▾

### Question

The angle of elevation of the top of a building from the foot of temple is 450 and the angle of elevation of the top of the temple from the foot of the building is 600. If the temple is 50 m high, then the height of the building is –

### Choices

Choice (4) Response

a.

b.

c.

47

d.

## Question number: 208

» Basic Mathematics » Algebra » Solutions to Equations

MCQ▾

### Question

If a, b, c, d are positive real numbers such that, , then is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 209

MCQ▾

### Question

If are three points and satisfy the relations, then the locus of the point S is –

### Choices

Choice (4) Response

a.

Line parallel to y axis

b.

Circle with centre origin

c.

Circle passing through origin

d.

Line parallel to x-axis

## Question number: 210

» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method

MCQ▾

### Question

A ladder 12 cm long is leading against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 3 cm/sec. How fast is its height on the wall decreasing when the foot of the ladder is 5 cm away from the wall?

### Choices

Choice (4) Response

a.

b.

c.

d.

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