Check the validity of the statements
(i) 200 is multiple of 4 and 5
(ii) 240 is a multiple of 3 or 5

If A = {x : x is a multiple of 2} B = {x : x is a multiple of 5}, then A-B is

n(n+1)(n+5) is a multiple 3.

Re - write the following statement with " if then " in five different ways conveying the same meaning . If a number is a multiple of 10 then it is a multiple of 5

The inverse of the statement " If an integer is greater than 3 and less than 5 then it is a multiple of 4" is

Check the validity of the statements given below by the method given against it. (i) p: The sum of an irrational number and a rational number is irrational (by contradiction method). (ii) q: If n is a real number with n gt 3 , then n^(2)gt9 (by contradiction method).

Let p: 32 is a multiple of 8. q: 17 is a prime number. r : 3 + 7 = 11 . The symbolic form of the statement : "32 is a multiple of 8 and 17 is a prime number but 3 + 7 ne 7", is

Let A = {x : x is a multiple of 3} and B = {x : x is a multiple of 5), then A nn B is given by

By the method of contrapositive, check the validity of the statement: " If a, b in Z such that ab is odd, then both 'a' and 'b' are odd".

Find the sum of a] first 10 multiples of 8 b] first 25 multiples of 3 c] first 100 multiples of 2.