@sumit1234567890 said:If x is a perfect square integer such that 7(2x - 3)9
25 16 9 4
Correction: I will wait here unless you come back...
a boat goes 30km upstream nd 44km downstream in 10hours. in 13hours 40km upstream nd 55km downstream..find speed of aeroplane in still water..
n plz wid shortcut..
a+b+c=0.......{1/(b^2+c^2-a^2)}+{1/(c^2+a^2-b^2)}+{1/(a^2+b^2-c^2)}? explain also....
@cbiofficer said: a boat goes 30km upstream nd 44km downstream in 10hours. in 13hours 40km upstream nd 55km downstream..find speed of aeroplane in still water..n plz wid shortcut..
bhai aeroplane ki speed kha aa gyi? just kidding

@sandeepv882 said: a+b+c=0.......{1/(b^2+c^2-a^2)}+{1/(c^2+a^2-b^2)}+{1/(a^2+b^2-c^2)}? explain also....
yar simpy take, a=2 ,b=-1,c=-1
n solve :)
0 naa??
@cbiofficer said: a boat goes 30km upstream nd 44km downstream in 10hours. in 13hours 40km upstream nd 55km downstream..find speed of aeroplane in still water..n plz wid shortcut..
Spd of boat in still wtr= 8
Airplane drowned in still water
