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XAT 2014 takers on 5th January 2014 are advised to read following important questions on Quantitative Reasoning - Numbers Puzzles
How many squares can be formed using the checkered 1 * 1 squares in a normal chessboard?
Option (2). 204 squares
The number of squares that can be formed using the 1 * 1 checkered squares of a chess board is therefore, given by the relation 12 + 22 + 32 + 42 + ... + 82 = 204
How many digits will the number 3200 have if the value of log103 = 0.4771?
Option (3). 96 digits
The logarithm of any number has two components. The characteristic and the mantissa.
Take for example, log103, the value of log103 = 0.4771.
Here, the 0 in the integral part is known as the characteristic and the value .4771 is known as the mantissa.
The value of log1030 is 1.4771.
Notice that the value of mantissa remained the same while that of the characteristic changed from 0 to 1.
Given the log of anumber, we will be able to find out the number of digits that the original number had by knowing the value of the characteristic.
In the given problem, we need to find the number of digits of 3200.
If we take log we get log103200 = 200(log103) = 200 (0.4771) = 95.42.
Here, the characteristic is 95. Therefore, the number will have 96 digits.
The 21st century is a century of movement and fluidity. Globalisation, aided by technological innovation, has redefined the idea of borders and identities
Xavier Aptitude Test (XAT) 2017 will be on the similar pattern like previous years. The entrance test is to follow the Pen-Paper format like every year.
XAT 2017 will be conducted on 8th January, 2017. XAT or Xavier Aptitude Test is the entrance exam organized by Xavier Labor Relation Institute (XLRI), Jamshedpur.