#1
27th November 2015, 11:39 AM
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MBA Concepts
Will you please give here concept or tricks to solve Quantitative Aptitude Test Questions on Cyclicity of Numbers in MBA entrance test paper ?
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#2
27th November 2015, 12:00 PM
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Re: MBA Concepts
As you want I am here giving you concept or tricks to solve Quantitative Aptitude Test Questions on Cyclicity of Numbers in MBA entrance test paper. Important Concepts and Shortcuts of Cyclicity of Numbers: Types of questions based on cyclicity of numbers There are mainly 3 categories of questions which fall under cyclicity of numbers, that include How to find units digit of ab How to find units digit of ab * cd * ef How to find units digit of a Find units digit of ab Given ab, units place digit of the result depends on units place digit of a and the divisibility of power b. Consider powers of 2 As we know, 21 =2 22 = 4 23 = 8 24 = 16 25 = 32 26 = 64 27 = 128.. and so on. Example Find the units place digit of 299? Using the above observation of cyclicity of powers of 2, divide the exponent by 4. 99/4 gives reminder as 3. That means, units place digit of 299 is the 3rd item in the cycle which is 8. Important Concepts and Shortcuts of Cyclicity of Numbers |
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