Pattern 7:

1. (40*40*40 – 31*31*31)/(40*40+40*31+31*31)=?
a)8 b)9 c)71 d)51

Solution:a³  -b³ =(a-b)*(a²+a*b+b²) so from this formula we will find (a-b) value

2. (98*98*98 – 73*73*73)/( 98*98*98 – 73*73*73)=?
a).171 b).4 c).420 d).415

3. (209*144)^2 + (209*209)+(209*144)+(144*144) = ?
a)905863729 b)905368729 c)905729368 d)65

To Previous Pattern :(click on link below)
Pattern 1 :http://youthtalentauzzar.blogspot.com/2011/11/placement-papers-tcs-tata-consultancy.html
Pattern 2 : http://youthtalentauzzar.blogspot.com/2011/11/placement-papers-tcs-tata-consultancy_15.html
Pattern 3 : http://youthtalentauzzar.blogspot.com/2011/11/placemnt-papertcs-pattern-3.html
Pattern 4 : http://youthtalentauzzar.blogspot.com/2011/11/here-is-patten-4-for-tcs-placement.html
Pattern 5: http://youthtalentauzzar.blogspot.com/2011/11/placement-paper-tcs-pattern-5.html
Pattern 6: http://youthtalentauzzar.blogspot.com/2011/11/placement-paper-tcs-pattern-6-pattern.html

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