Category: Shortcuts

Aptitude – Shortcuts for Addition and Subtraction
Aptitude Shortcuts
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Aptitude Shortcuts
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Aptitude – Shortcuts for Addition and Subtraction

siva - Dec 26, 2016

Addition is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total…

Aptitude – Shortcuts for Multiplication
Aptitude Shortcuts
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Aptitude Shortcuts
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Aptitude – Shortcuts for Multiplication

siva - Dec 26, 2016

Multiplication of whole numbers is equivalent to a repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them,…

Shortcut of Combination and Probability
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Combination and Probability

siva - Sep 02, 2016

Shortcut 99:    nCr=n!/[r!(n-r)!] Question: In how many ways 2 shirts and 3 pants can be selected from 5 shirts and 7 pants? Answer: Selecting 2 shirts…

Shortcut of Permutation-2
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Permutation-2

siva - Sep 01, 2016

Shortcut 95: Repeated elements      n!/(a!*b!) Question: In how many ways the letters of the word “ENVIRONMENT” can be arranged? Answer: n = 11 Let, a =…

Shortcut of Permutation-1
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Permutation-1

siva - Sep 01, 2016

Shortcut 91: Events   Dependent=multiplication   Independent =addition Question: There 3 busses from city A to city B and there are 5 busses from city B to…

Shortcut of Calendar and Clocks
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Calendar and Clocks

siva - Aug 31, 2016

Shortcut 87:                              Using the odd days Question: Find the day of birth of MS Dhoni (7 July, 1981), if 31 Dec 1999 is Friday Answer: Days…

Shortcut of Heights and Distances
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Heights and Distances

siva - Aug 31, 2016

Shortcut 85: Using tanƟ Ɵ                                tan 0                                    0 30                            [latex]1/\sqrt3 [/latex] 45                                  1 60                             [latex] \sqrt3[/latex] 90                           …

Shortcut of LCM and HCF
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of LCM and HCF

siva - Aug 30, 2016

Shortcut 82: Maximum number of items per group     Take HCF Question: There are 40, 45 and 50 balls in three different colors. They have to be…

Shortcut of Number system
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Number system

siva - Aug 30, 2016

Shortcut 77: Divisibility test Divisibleby                                    Rule 2                            Last digit of a number should be 0,2,4,6, or 8 3                            Sum of the digit should be divisible by 3…

Shortcut of Simple and Compound Interest
Aptitude Shortcuts
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Aptitude Shortcuts
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Shortcut of Simple and Compound Interest

siva - Aug 29, 2016

Shortcut 75: Simple interest [latex]SI=\frac{PNR}{100}[/latex] P = Principle amount invested or borrowed R = Rate of interest per term N = Number of terms Term = duration…