Gordon, an inhabitant of Nibiru, evaluated an expression and arrived at a two-digit answer ‘ 8β’. Which of the following could be the expression evaluated by Gordon? a) 2β ^2 – 5β + 3 b) 2β ^2 + 5β + 3 c) 2β ^2 + 6β – 1 d) 2β ^2 + 4β – 2 Help me!!!

@Rowdy-Rathore The answer is 14.85 approx 15 days.

@mbatious The answer is 36 hr.

@Rowdy-Rathore 90+30x=60+60x X=1 Total steps=120

@gaurav_sharma 3hour ans ??

Hi can you please send the solution of SET 9

@venkateshp Rs. 1800JiteshRs. 7950Gaurav

@hemant_malhotra Hello sir, To the reference of the above question, I have a doubt. It says he makes 20% profit secretly and claims to sell at the 10% loss. Then, If cost price is 100 , he makes a loss of 10 I.e. 90(S.P.) but here he SECRETLY makes a profit of 20%. So won't that be 90/1.2?

Any leads to mentors? I couldn't get it online.

@Raman_Sharma Please suggest approach

@Rowdy-Rathore The speed of the jogger is 15 Km/h

@hemant_malhotra 416/400 = 1+r/100 r=4% x/416 =1 +4/100 x =432.64

@Rowdy-Rathore solution is 32

@gaurav_sharma said in Quant Boosters - Gaurav Sharma - Set 5: Q26) John and David work on alternate days with John starting on the first day. John does 12.5% of the total work on the last day and finishes the work. If John alone can do the work in 6 days then which of following can be the number of days in which David alone can do the whole work?(a) 24 days(b) 12 days(c) 8 days(d) 10 days Need solutioninlinemathsinline mathsinlinemaths

@Rowdy-Rathore F(x) = x^4-360x^2+400F(x) = (x^2+20)^2 - 400x^2F(x) = (x^2-20x+20)(x^2+20x+20) = Prime NumberSince the value of second factor is always positive and greater than 1 therefore, 1st factor hasto be equals to 1.x^2-20x+20 = 1x^2-20x+19= 0On solving,x = 1, 19.Putting back the values in the original equation we get f(x) = 41 and f(x) = 761. So, the sum will be 41+761 = 802

@hemant_malhotra 8..............................................................

@Rowdy-Rathore please give the solution

@shashank_prabhu sir please provide explanation of it

@master_shifu If both y and x are zero, then xy + yz + xz would be equal to zero. The answer stated by you is wrong.