@staaalinnn said:Q> Let a, b, c, d be four real numbers such that a + b + c + d = 8 & ab + ac + ad + bc + bd + cd = 12. Find the greatest possible value of d.
6??
aur kuch nahi dimag mein aa raha
@nick_baba said:Let p(x) = x^2 + bx + c , where b and c are integers. If p(x) is afactor of both x^4 + 6x^2 + 25 and 3x^4 + 4x^2 + 28x + 5 , what is p(1)?a) 0 b) 4 c) 8 d) 12
p(x)=x^2-2x+5
=>p(1)=1-2+5=4
b)4
=>p(1)=1-2+5=4
b)4
@nick_baba said:Let p(x) = x^2 + bx + c , where b and c are integers. If p(x) is afactor of both x^4 + 6x^2 + 25 and 3x^4 + 4x^2 + 28x + 5 , what is p(1)?a) 0 b) 4 c) 8 d) 12
4??
@nick_baba said:but p(x) pe approach kaise kara??
Let p(x) = x^2 + bx + c , where b and c are integers. If p(x) is a factor of both x^4 + 6x^2 + 25 and 3x^4 + 4x^2 + 28x + 5 , what is p(1)?
a) 0
b) 4
c) 8
d) 12
x^4 + 6x^2 + 25= (x^2+5)^2-4x^2=(x^2+5+2x)(x^2+5-2x)
(3x^4 + 4x^2 + 28x + 5)/(x^2+5-2x)=3x^2+6x+1
(3x^4 + 4x^2 + 28x + 5)/(x^2+5+2x)= i don't care
a) 0
b) 4
c) 8
d) 12
x^4 + 6x^2 + 25= (x^2+5)^2-4x^2=(x^2+5+2x)(x^2+5-2x)
(3x^4 + 4x^2 + 28x + 5)/(x^2+5-2x)=3x^2+6x+1
(3x^4 + 4x^2 + 28x + 5)/(x^2+5+2x)= i don't care
Need to be active on this thread for CAT 13.
@catter2011 said:P works faster than q. Will he take more than 20 days to complete a job X ?1) The sum of times that p and q would take to complete X is 50 days2) p would take 10 days less than q to complete xopitons:a)If the data in St1 alone is sufficient while data in st2 alone is notb)data in st2 alone is suffice , while data in st1 alone is notc)if the data in st1 alone or st2 alone but not bothd)if the data in both the st's together is suffice to answer the questione)if the data even in both the st's together is not suffice to answer the question
d) ?
pls share the approach for this question guys..
what is the product of 6843256709 and 125 ?
855407088625
855407087625
855400788625
855407088525
855407089625
Didn't notice it was CAT13 thread already.
@catter2011 said:pls share the approach for this question guys..what is the product of 6843256709 and 125 ?855407088625855407087625855400788625855407088525855407089625
125= 1000/8
@krum said:d) ?
hmm .. how u concluded d) ?
doesn't st 1 alone says tht P requires more than 50 days , assuming B doesnt do negative work ?
doesn't st 1 alone says tht P requires more than 50 days , assuming B doesnt do negative work ?
@Ibanez said:Need to be active on this thread for CAT 13.
badla lena hai bhai, waise VA 2013 hai kya ? wahan bhi jana padega
@catter2011 said:P works faster than q. Will he take more than 20 days to complete a job X ?1) The sum of times that p and q would take to complete X is 50 days2) p would take 10 days less than q to complete xopitons:a)If the data in St1 alone is sufficient while data in st2 alone is notb)data in st2 alone is suffice , while data in st1 alone is notc)if the data in st1 alone or st2 alone but not bothd)if the data in both the st's together is suffice to answer the questione)if the data even in both the st's together is not suffice to answer the question
statement 1??
@krum said:badla lena hai bhai, waise VA 2013 hai kya ? wahan bhi jana padega
Revenge toh lena hi padega
@staaalinnn said:Q> Let a, b, c, d be four real numbers such that a + b + c + d = 8 & ab + ac + ad + bc + bd + cd = 12. Find the greatest possible value of d.
2+ 3 (2)^1/2
@catter2011 said:hmm .. how u concluded d) ?does st 1 alone says tht P requires more than 50 days , assuming B doesnt do negative work ?
yaar its written that P works faster than Q , so i assumed they actually want to complete the work