# Basic Mathematics (KVPY Stream-SA (Class 11) Math): Questions 86 - 90 of 164

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## 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

Where for j = 2, 3, 4, 5, 6. The sum 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:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 89

» Basic Mathematics » Algebra » Solving Equations

MCQ▾

### Question

Let a, b, c, d be real numbers such that, and . Then the set of all possible values of is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## 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, in some order. The area of the rectangle is –

### Choices

Choice (4) Response

a.

b.

c.

d.

148.5

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