If Ram secures 100 marks n math then he will get a mobile. The logically equivalent statement is

For any two statements, prove that the implication and its contrapositive are logically equivalent statements.

The compound statement (phArr q)vv(p hArr ~q) is logically equivalent to

(a) Given n resistors each of resistance R . How will you combine them to get the (i) maximum (ii) minimum effective resistance ? What is the ratio of the maximum to minimum resistance ? (b) Given the resistances of 1 Omega, 2 Omega, 3 Omega , how will you combine them to get an equivalent resistance of (i) (11//3)Omega (ii) (11//5)Omega (iii) 6 Omega (iv) (6//11) Omega ? (c) Determine the equivalent resistance of networks shown in Figure.

Let P and Q be two statements, then ~(~P^^Q)^^(PvvQ) is logically equivalent to

The compound statement (prarrq)vv (p^^~q) is logically equivalent to

The compound statement (prarr ~q)vv(p^^q) is logically equivalent to

Consider three statements p : Aman will come today q : Aditi will be at her home r : They will go to party. Then, the statement (q^^~r) rArrp is logically equivalent to

Show that the compound statements (pvvq)^^~p and ~ p^^q are logically equivalent.

If Ramesh score 50 marks in English and 60 marks in Math. Find out the average marks he secure.

There are three papers of 100 marks each in an examination. Then the no. of ways can a student get 150 marks such that he gets atleast 60% in two papers