Basic Mathematics (KVPY Stream-SA (Class 11) Math): Questions 86 - 90 of 156

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 251 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 86

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

Question

In a cinema hall, the charge per person is Rs. 400. On the first day, only 50 % of the seats were filled. The owner decided to reduce the price by 12 % and there was an increase of 36 % in the number of spectators on the next day. The percentage increase in the revenue on the second day was –

Choices

Choice (4) Response

a.

17.36

b.

19.68

c.

18.17

d.

20.20

Question number: 87

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

Suppose a2, a3, a4, a5, a6 are integers such that

56=a22!+a33!+a44!+a55!+a66!

Where 0a<j for j = 2, 3, 4, 5, 6. The sum a2+a3+a4+a5+a6 is,

Choices

Choice (4) Response

a.

9

b.

8

c.

10

d.

11

Question number: 88

» Basic Mathematics » Algebra » Solving Equations

MCQ▾

Question

Roots of equation:

x2x4+x6x8=x10x12+x14x16

Choices

Choice (4) Response

a.

10±3

b.

5±32

c.

5±3

d.

10±23

Question number: 89

» Basic Mathematics » Algebra » Solving Equations

MCQ▾

Question

Let a, b, c, d be real numbers such that a2+b2=144 , c2+d2=169 and ac+bd=156 . Then the set of all possible values of adbc is –

Choices

Choice (4) Response

a.

[0,317]

b.

{0}

c.

[715,)

d.

(0,912]

Question number: 90

» Basic Mathematics » Geometry » Polygons With More Than 4 Sides

MCQ▾

Question

A triangular corner is cut from a rectangular piece of board and the resulting pentagon has sides 5, 6, 12, 15, 130 in some order. The area of the rectangle is –

Choices

Choice (4) Response

a.

122.5

b.

63.25

c.

130

d.

148.5

Sign In