Basic Mathematics-Arithmetic (KVPY Stream-SA (Class 11) Math): Questions 13 - 16 of 77

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Question number: 13

» Basic Mathematics » Arithmetic » Ratio and Proportion

Appeared in Year: 2013

MCQ▾

Question

In a city, the total income of all people with salary below Rs. 10, 000 per annum is less than the total income of all people with salary above Rs. 10, 000 per annum. If the salaries of people in the first group increases by 5 % and the salaries of people in the second group decreases by 5 % then the average income of all people.

Choices

Choice (4) Response

a.

remains the same

b.

decreases

c.

cannot be determined from the data

d.

increases

Question number: 14

» Basic Mathematics » Arithmetic » Rates

Appeared in Year: 2010

MCQ▾

Question

A closed conical vessel is filled with water fully and is placed with its vertex down. The water is flow out at a constant speed. After 21 minutes, it was found that the height of the water column is half of the original height. How much more time in minutes does it require to empty the vessel?

Choices

Choice (4) Response

a.

21

b.

7

c.

14

d.

3

Question number: 15

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

Question

In a concert, the charge of pass per person is Rs. 500. On the first day, only 40 % of the passes were sold. The owner decided to reduce the price by 30 % and there was an increase of 60 % in the number of passes sold on the next day. The percentage increase in the revenue on the second day was

Choices

Choice (4) Response

a.

13

b.

12

c.

10

d.

11

Question number: 16

» Basic Mathematics » Arithmetic » Number Games

Appeared in Year: 2014

MCQ▾

Question

The houses on one side of a road are numbered using consecutive even numbers. The sum of the numbers of all the houses in that row is 170. If there are at least 6 houses in that row and a is the number of the sixth house.

Choices

Choice (4) Response

a.

2a6

b.

8a12

c.

14a20

d.

22a30

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