ques
A=(2,3,4,5)
B=(4,5,6,7,8)
two integers will be randomly selected from the sets above one integers set A and One integer set from b. What is the probality that summs of inteers will be equal to 9
I can make combination 4 like, (4,5), (5,4), (3,6), (2,7)
So the probality will 4/20= 0.2
I want to ask gmat guns that in multiplication cases we take reverse of these possibilities. suppose in same problem set lets take that we found 4 cases whuch make even possibility. (4,5) and (5,4), )2,7), (7,2), (3,6),(6,3) and so on This just an example. So in Mulptiplication we take 8 cases that is double of it.
In addition we count one and in mulptiplication we count twice depending upon no of sets.
Pls confirm
A=(2,3,4,5)
B=(4,5,6,7,8)
two integers will be randomly selected from the sets above one integers set A and One integer set from b. What is the probality that summs of inteers will be equal to 9
I can make combination 4 like, (4,5), (5,4), (3,6), (2,7)
So the probality will 4/20= 0.2
I want to ask gmat guns that in multiplication cases we take reverse of these possibilities. suppose in same problem set lets take that we found 4 cases whuch make even possibility. (4,5) and (5,4), )2,7), (7,2), (3,6),(6,3) and so on This just an example. So in Mulptiplication we take 8 cases that is double of it.
In addition we count one and in mulptiplication we count twice depending upon no of sets.
Pls confirm
