1/10c2=2/45?
@sonamaries7 said:simple one There are two stations A and B. There are 8 stations in between them. You can take a ticket from any station to any station. What is the probability of selecting a ticket from A to B?
2C1/10C2 ?
@VJ12 said:@aashu250.8D?Maine normal method main kiyaaIf correct,Proper method bhailog bolenge.@Logrhythm@scrabbler
ya .. its correct.. but please provide the approach as well bhai :)
@sonamaries7 said:simple one
There are two stations A and B. There are 8 stations in between them. You can take a ticket from any station to any station. What is the probability of selecting a ticket from A to B?
1/45
No. of divisors of (2^2)*{3^3}*{5^3}*{7^5} of the form 4n+1?
13 red balls, 7 blue balls and 6 yellow balls are present in the box. What is the probability that 2 balls are selected such that 1 ball is red and the other blue?
@audiq7 said:13 red balls, 7 blue balls and 6 yellow balls are present in the box. What is the probability that 2 balls are selected such that 1 ball is red and the other blue?
13c1*7c1/26c2
7/25
@audiq7 said:13 red balls, 7 blue balls and 6 yellow balls are present in the box. What is the probability that 2 balls are selected such that 1 ball is red and the other blue?
7/25
@audiq7 said:thik tha.... de rahe ho?
nope.... not mahrahstrian. ... wont get jbims... whats the answer to previous Question ???
@audiq7 said:13 red balls, 7 blue balls and 6 yellow balls are present in the box. What is the probability that 2 balls are selected such that 1 ball is red and the other blue?
if in succession-7/50
oherwise-7/25
oherwise-7/25
@techsurge said:nope.... not mahrahstrian. ... wont get jbims... whats the answer to previous Question ???
aaj tha cmat mein. mene (13/26)*(7/25) kiya hai. ye wrong hai na??
@venomizer said:if in succession-7/50oherwise-7/25
bhai mere.. pehla banda mila hai tu muze jo 7/50 keh raha hai.. in succession hi tha. u sure?
@audiq7 said:aaj tha cmat mein. mene (13/26)*(7/25) kiya hai. ye wrong hai na??
bhai aap ka answer correct hai.. pehle 26 possibility hai ismein 13 favourable hai so 13/26
ab blue ball ka case mein ek already select ho chuki hai kyunki "AND" diya hua hai question mein.. so total possibility is 25, favourable is 7 so 7/25. hence total probability (13/26)*(7/25)
ab blue ball ka case mein ek already select ho chuki hai kyunki "AND" diya hua hai question mein.. so total possibility is 25, favourable is 7 so 7/25. hence total probability (13/26)*(7/25)
@venomizer said:if in succession-7/50oherwise-7/25
bro it should be 7/52 n not 7/50.. if i am wrong kindly correct me
@audiq7
mere khyal se galat hai
is liye kyunki you forget the order
in your case 1st ball is red
2nd is white
1 case more
1 blue , 2nd red
maine kya kiya , conditional probability
selcting red and selcting blue over selecting any 2 balls
mein bhi aisi galtiyan karta rehta hun :mg: