Question
If a =
src='https://static.ixambee.com/public/images/quesimg/RRB NTPC (CBT, Stage 1)/Quantitative Aptitude/Algebra/77087_3753501.gif'> and b =   , then the value of (a2+b2+ab) isSolution
a =Â /Quantitative Aptitude/Algebra/77087_7983479.gif)
 and b =  So here, ab =   = 1 & a+b =     = = 2{ (√7)2+ (√6) 2}/1 = 2(7+6) =26 then the value of (a2+b2+ab) = a2+b2+2ab -ab = (a+b)2 -ab = 262 - 1 = 676 -1 = 675.
Select the options that correctly indicate a 25% profit and a 15% loss
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