## 3 Solved Algebra Problems To Prepare For Infosys Aptitude Tests

Below are three tricky problems on algebra, you have to find the value or number of terms in the given expression.

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## Practice 3 Simplification Problems To Prepare For Infosys Aptitude Tests

Below are three problems on simplifications using equations which you can expect in Infosys and other companies placement paper.

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## 3 Probability Problems To Prepare For Infosys Placement Tests

Below are three probability problems using time calculations.

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## Practice 3 Train Problems To Prepare For Infosys Placement Tests

Below are three train problems which deals with time,speed and distance calculations.

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## Practice 3 Combination Problems To Prepare For Infosys Aptitude Tests

Below are three simple problems based on combinations.

Note :
Number of Combinations:

The number of all combinations of n things, taken r at a time is:

nCr = n! / (r!)(n - r!)

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## 3 Puzzle Problems To Prepare For Infosys Aptitude Tests

Below are three numeric puzzles dealing with some basic arithmetic calculations.

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Find X's age which equals the number of grand children of a man who has 4 sons and 4 daughters. Each daughter of the man's wife have 3 sons and 4 daughters and each son of the man's wife have 4 sons and 3 daughters.

## Practice 3 Solved Reversible Problems To Prepare For Infosys Placement Tests

Below are three problems dealing with reversible numbers which is multiplied by 4 and 9.

Question 1

If UVWX / 9 = XWVU and U = 10 - X, then find the 4-digit numbers UVWX.

a) 9801 b) 9081 c) 9810 d) 9108

Solution :

Given that, UVWX / 9 = XWVU

That is, XWVU x 9 = UVWX

## 3 Solved Sibling Problems To Prepare For Infosys Aptitude Tests

Below are three problems based on the concept of number of brothers and sisters, you have to find the number of siblings according to given statements.

Question 1