Intelligence Bureau (IB) ACIO Examination 2017 - Sample Set - 10

Intelligence Bureau (IB) ACIO Examination - Sample Set - 10
General Mathematics and Aptitudes

Intelligence Bureau ACIO written test consist of Paper I and Paper II. General Mathematics and Quantitative Aptitudes are the major part of Paper I. Find the basic ideas and format about the type of question expected to be asked in IB ACIO 2012. This Sample has been just written as an analytic result of last year questions, we don't guarantee.  

You must check out all Sample Sets, 

To get full details about IB ACIO Exam,

Tips techniques and study materials.....!

Sample Set 1, Sample Set 2,
Sample Set 3, Sample Set 4,

Sample Set 5 Sample Set 6, 

Sample Set 7 Sample Set 8,
Sample Set 9, Sample Set 10. 

We've already discussed about the format of questions in previous article, we expect there will question based on simple calculation, algebra and arithmetic. Find below the details about topic with tips and examples.

  -: Simple Arithmetic and Algebra :-

Useful Formula : -

(a + b)² = a² + 2ab + b²

(a - b)² = a² - 2ab + b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

a² - b² = (a - b)(a + b)

Example:-

Find the value of  (999)²

-: Simple Calculation[LCM/HCF] :-

To find the Highest Common Factor and Least/Lowest Common Multiple Average using factor and fractions. 

Example:-

What is the highest number of four digits which will leave a remainder of 1 when divided by any of the numbers 6, 9, 12, 15 or 18?

Ans: 9901

-:  Average  :-

Average = Some of all Items/Number of Items 

Example:-

Average of 11 numbers is 63, that of the first 6 numbers is 60and that of the last 6 is 65. Find the sixth number
Ans : 57

-: Time and Distance/Work :-

Distance = Speed*Time

Example:-

40 men can finish a piece of work in 15 days. In what time can 50 men do the same work?

Ans: 12 days

-:  Percentage  :- 

Example:-

When 75% of a number is added to 75, the result is the number again. Find the number?

Ans : 300

-:  To find wrong numbers :- 

Example:-

Find the wrong one in series:

2, 5, 10, 17, 25, 37

Ans : 25

2, 5, 8, 11, 16

Ans : 16

There could be some question based on Partnership and Ratio/Proportion. Mathematics is all about practice. We wish all the best!