Basic Mathematics (KVPY Stream-SA (Class 11) Math): Questions 118 - 124 of 164

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Question number: 118

» Basic Mathematics » Geometry » Circle and Properties

MCQ▾

Question

The lengths of two parallel chords of a circle are 8 cm and 6 cm. If the smaller chord is at distance 4 cm from the centre, then the distance of the other chord from the centre is –

Choices

Choice (4) Response

a.

3

b.

5

c.

4

d.

2

Question number: 119

» Basic Mathematics » Algebra » Simplifying Expressions

MCQ▾

Question

For which, statement: “ f(x)=x2x+41 is prime” is not true?

Choices

Choice (4) Response

a.

f(2)

b.

f(4)

c.

f(5)

d.

f(3)

Question number: 120

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

MCQ▾

Question

12 women can complete a work in 5 days and 12 children take 10 days to complete a work. How many days will 3 women and 6 children take to complete the work?

Choices

Choice (4) Response

a.

12

b.

8

c.

9

d.

10

Question number: 121

» Basic Mathematics » Arithmetic » Simplifying Expressions

MCQ▾

Question

If α is the root of x2+5x2=0 then other root β is –

Choices

Choice (4) Response

a.

β=2α2+10α6α

b.

β=α2+5α7

c.

β=2α5α2

d.

All a. , b. and c. are correct

Question number: 122

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

If, x0,x=6666 than value of x is –

Choices

Choice (4) Response

a.

2

b.

3

c.

2

d.

3

Question number: 123

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

The least positive integer n from which n+33n+23<121 is –

Choices

Choice (4) Response

a.

15

b.

16

c.

17

d.

18

Question number: 124

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

MCQ▾

Question

A ladder 8 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 2 cm/sec. How fast is its height on the wall decreasing when the foot of the ladder is 3 cm away from the wall?

Choices

Choice (4) Response

a.

355cms

b.

655cms

c.

355cms

d.

655cms

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