# Mathematics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 17 - 22 of 112

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## Question number: 17

» Mathematics » Exponents

MCQ▾

### Question

The unit digit in the product of is

### Choices

Choice (4) Response

a.

9

b.

3

c.

5

d.

7

## Question number: 18

» Mathematics » Percentage

MCQ▾

### Question

If x is inversely proportional to y and x is increase by 20%, then y decrease by (Note x and y have same initial value)

### Choices

Choice (4) Response

a.

%

b.

%

c.

d.

## Question number: 19

» Mathematics » Arithmetic

MCQ▾

### Question

The cost of a pen is Rs. 5 and the cost of a pencil is Rs. 1. The ratio between number of pen and pencil is 2: 3. If 12 % and 10 % of cost of pen and pencil respectively is increased, then the total selling price of both is Rs. 725. What is the difference between number of pen and pencil?

### Choices

Choice (4) Response

a.

30

b.

63

c.

59

d.

50

## Question number: 20

» Mathematics » Algebraic Expressions

MCQ▾

### Question

How many factors of () lie between 2 and 10?

### Choices

Choice (4) Response

a.

1

b.

0

c.

2

d.

3

## Question number: 21

» Mathematics » Percentage

MCQ▾

### Question

Due to the higher tax of the commodity, Government decides to decrease 15 % tax of the commodity. But the consumption is increased by 10%. Then, the decreasing percentage in revenue corresponding to new revenue is

### Choices

Choice (4) Response

a.

7.3%

b.

6.5%

c.

5.5%

d.

4.5%

## Question number: 22

» Mathematics » Percentage

MCQ▾

### Question

The fruit seller has some apples. He sells 40 % apples and still has 420 apples. Originally, he had

### Choices

Choice (4) Response

a.

700 apples

b.

672 apples

c.

588 apples

d.

600 apples

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