Question

If Jason goes to the concert, then Beth will go.
If Beth goes to the concert, then Cindy will go.
If Cindy goes to the concert, then Shannon will go.
Only 2 of the 4 friends went to the concert. Who were they? Explain.

Answer 1

Cindy and Shannon.

Answer 2

But why?

Answer 3

Coz if Jason goes, all 4 will go for sure.
If Beth goes, then 3 will go for sure.
But we know that only 2 went.
Shannon going doesnt make anyone else go.
Cindy going only makes Shannon go.

Answer 4

but Beth has to go for cindy to go.

Answer 5

No Akshay, my password is fine :)

Answer 6

oh okay :)

Answer 7

Cindy can go she doesnt need beth.

Answer 8

Cindy can choose to go or not.
Beth going will make her go, but she can decide to go even if Beth doesnt go.

Answer 9

ahhh... i think i get it. :) Thanks for helping me :D

Answer 10

yw

Answer 11

p -> q
t t = t
t f = f
f t = t
f f = t

Answer 12

If (Jason goes to the concert), then (Beth will go).
F F = T

If (Beth goes to the concert), then (Cindy will go).
F T = T

If (Cindy goes to the concert), then (Shannon will go.)
T T =T

Who went ?

Answer 13

Amistre, we are in suspense ... who did go ?

Wow - going to a concert is so complicated ...

Answer 14

Actually, I know who went - I was there :)