1
###
A and B are two heavy steel blocks. If B is placed on the top of A

A and B are two heavy steel blocks. If B is placed on the top of A, the weight increases by 60%. How much weight will reduce with respect to the total weight of A and B, if B is removed from the top of A?

- 60%
- 45.5%
- 40%
- 37.5%

2
###
A student has to get 40% marks to pass in an examination

A student has to get 40% marks to pass in an examination. Suppose he gets 30 marks and fails by 30 marks, then what are the maximum marks in the examination?

- 100
- 120
- 150
- 300

3
###
In a group of persons, 70% of the persons are male

In a group of persons, 70% of the persons are male and 30% of the persons are married. If two sevenths of males are married, what fraction of the females is single?

- 2/7
- 3/7
- 2/3
- 1/3

4
###
The tank-full petrol in Arun's motor-cycle lasts for 10 days

The tank-full petrol in Arun's motor-cycle lasts for 10 days. If he starts using 25% more everyday, how many days will the tank-full petrol last?

- 5
- 6
- 7
- 8

5
###
An employee is required to contribute 10% of his pay

An employee is required to contribute 10% of his pay to General Provident Fund. If he gets ₹13,500 as net pay in a month, then what is the monthly General Provident Fund contribution (assuming no other deductions)?

- ₹ 1215
- ₹ 1350
- ₹ 1500
- ₹ 1650

6
###
A man loses 20% of his money. After spending 25% of the remainder

A man loses 20% of his money. After spending 25% of the remainder, he has ₹ 480 left. What is the amount of money he originally had?

- ₹ 600
- ₹ 720
- ₹ 800
- ₹ 840

8
###
If m% of m + n% of n = 2% of (m × n)

If m% of m + n% of n = 2% of (m × n), then what percentage of m is n?

- 25%
- 50%
- 75%
- 100%

9
###
The price of an article is ₹ 25. After two successive cuts

The price of an article is ₹ 25. After two successive cuts by the same percentage, the price becomes ₹ 20.25. If each time the cut was x%, then

- x = 9
- x = 10
- x = 11
- x = 11.5

10
###
The radius of the base of a right circular cone is increased by 15%

The radius of the base of a right circular cone is increased by 15% keeping the height fixed. The volume of the cone will be increased by

- 34.75%
- 32.25%
- 31%
- 30%

11
###
What is the number whose 20% is 30% of 40

What is the number whose 20% is 30% of 40?

- 50
- 60
- 80
- 90

12
###
In a certain year, a school had 60% boys and 40% girls as students

In a certain year, a school had 60% boys and 40% girls as students. In the next five years the number of boys decreased by 10% and the number of girls increased by 10%. What is the change in total roll strength of the school in the five years?

- 3% increase
- 2% decrease
- No change
- 5% decrease

13
###
If each of the dimensions of a rectangle is increased by 200%

If each of the dimensions of a rectangle is increased by 200%, the area is increased by

- 300%
- 400%
- 600%
- 800%

14
###
5/9 th part of the population in a village are males. If 30% of the males are married

5/9 ^{th} part of the population in a village are males. If 30% of the males are married, the percentage of unmarried females in the total population is

- 20
^{2}/_{9} - 27
^{2}/_{9} - 27
^{7}/_{9} - 29
^{2}/_{9}

15
###
If a% of a + b% of b = 2% of ab, then what percent of a is b

If a% of a + b% of b = 2% of ab, then what percent of a is b?

- 50%
- 75%
- 100%
- Cannot be determined

16
###
The rabbit population in community A increases at 25% per year

The rabbit population in community A increases at 25% per year while that in community B increases at 50% per year. If the present populations of A and B are equal, what will he the ratio of the number of rabbits in community B to that in community A after 2 years?

- 1.44
- 1.72
- 1.90
- 1.26

17
###
In a test, a candidate attempted only 8 questions and secured

In a test, a candidate attempted only 8 questions and secured 50% marks in each of the questions. If he obtained a total of 40% in the test and all questions in the test carried equal marks, how many questions were there in the test?

- 8
- 10
- 15
- 16