# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Math: Questions 24 - 28 of 265

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## Question number: 24

Appeared in Year: 2011

MCQ▾

If , then is,

### Choices

Choice (4) Response

a.

a 3 + a 2 + 3 a - 16 - b

b.

c.

a 3 - a 2 + 3 a - 6 - b

d.

## Question number: 25

» Basic Mathematics » Arithmetic » Ratio and Proportion

Appeared in Year: 2011

MCQ▾

### Question

Two friends A and B are 30 km apart and they start simultaneously on motorcycles to meet each other. The speed of A is 3 times that of B. The distance between them decreases at the rate of 2 km per minute. Ten minutes after they start, A’s vehicle breaks down and A stops and waits for B to arrive. After how much time (in minutes) A started riding, does B meet A?

### Choices

Choice (4) Response

a.

20

b.

30

c.

25

d.

15

## Question number: 26

MCQ▾

### Question

PQR be a triangle with ∠ Q = 90 0. Let PS be the bisector of ∠ P with S on QR. Suppose PR = 5 cm, length of the SR is 2 cm, and the area of the triangle PQS is 10 cm 2. Then the length of PQ in cm is equal to

### Choices

Choice (4) Response

a.

10

b.

7

c.

15

d.

5

## Question number: 27

Appeared in Year: 2011

MCQ▾

### Question

Three circles each of radius 1, touch one another externally and they lie between two parallel lines. The minimum possible distance between the lines is

### Choices

Choice (4) Response

a.

b.

4

c.

d.

## Question number: 28

» Basic Mathematics » Arithmetic » Clocks

Appeared in Year: 2011

MCQ▾

### Question

A certain 12-hour digital clock displays the hour and the minute of a day. Due to a defect in the clock whenever the digit 1 is supposed to be displayed it displays 7. What fraction of the day will the clock show the correct time?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page