Mathematics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 148 - 154 of 218

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Question number: 148

» Mathematics » Probability

MCQ▾

Question

An unbiased dice is rolled twice, what is the probability of not getting a 2 in any one of the two rolls?

Choices

Choice (4) Response

a.

2536

b.

3536

c.

13

d.

512

Question number: 149

» Mathematics » Algebraic Expressions

MCQ▾

Question

If x+y+z=0 , then what is the value of xyz(x+y)(y+z)(z+x) where,

(x=y,y=z,z=x) ?

Choices

Choice (4) Response

a.

-1

b.

xy + yz + zx

c.

1

d.

All of the above

Question number: 150

» Mathematics » Simple Interest and Compound Interest

MCQ▾

Question

The difference between simple and compound interest for 2 year at 5 % per annum is Rs. 25. The sum is

Choices

Choice (4) Response

a.

Rs. 10100

b.

Rs. 2500

c.

Rs. 12000

d.

Rs. 10000

Question number: 151

» Mathematics » Arithmetic

MCQ▾

Question

For a positive integer n, define d (n) = the number of positive divisors of n. What is the value of d (d (d (12) ) )?

Choices

Choice (4) Response

a.

1

b.

2

c.

4

d.

None of the above

Question number: 152

» Mathematics » Rational Numbers

MCQ▾

Question

A merchant advertises 10 % off on the items bought from his store. The total discount got by a customer who bought a suitcase worth Rs. 560, a bag worth Rs. 90 and a towel worth Rs. 45 is

Choices

Choice (4) Response

a.

Rs. 71.50

b.

Rs. 69.50

c.

Rs. 70

d.

All of the above

Question number: 153

» Mathematics » Trigonometry

MCQ▾

Question

If cosA+cos2A=1 , then the value of sin2A+sin4A is

Choices

Choice (4) Response

a.

3

b.

½

c.

2

d.

1

Question number: 154

» Mathematics » Trigonometry

MCQ▾

Question

Given that ABC~PQR and area of ∆ ABC = 16, area of ∆PQR = 9.

If PQ = 18 cm and BC = 12 cm. Then, AB and QR are, respectively

Choices

Choice (4) Response

a.

13.5 cm, 16 cm

b.

9 cm, 24 cm

c.

32 cm, 6.75 cm

d.

24 cm, 9 cm

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