The Only True Statement
How it was tricky & what were others?
One has to be true & other 3 must be false. Let's consider each case one by one.
Case A : According to this statement the number of false statement is 1 which is contrary to given condition that 1 is true & 3 are false. So it can't be true.
Case B : As per this, number of false statements = 2 which is again contrary to given condition of 3 false statements.So it can't be true.
Case C : As per this, number of false statements =3 exactly matching the given condition.
Case D : This implies number of false statements = 4 meaning that all the statements including itself are false. This is opposite to given condition. So this has to be false as well.
So the statement C is true & all other are false!