Let S={a,b,c}epsilonNxxNxxN:a+b+c=21,a<=...

Let `S={a,b,c}epsilonNxxNxxN:a+b+c=21,a<=b<=c}` and T={(a,b,c)epsilon NxxNxxN :a,b,c are in AP} where N is the set of all natural numbers . then the element in the set ` SnnT` is

A

6

B

7

C

13

D

14

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

Let S={a,b,c}. Find the total number of binary operations on S.

Let a,b,cbe complex numbers such that |a|=|a-b|=3sqrt(3),|a+b+c|=21ata^(2)+b^(2)+c^(2)=ab+bc+ca, then |b|^(2)+|c|^(2) equals:

Let a = {a, b, c} and R = {(a, a), (b, b), (c, c), (b, c), (a, b)} be a relation on A, then the

Let A={a,b,c} and Let R={(a,a),(a,b),(b,a)}. then ,R is

Let A={a,b,c} and R={(a,a),(b,b),(c,c),(b,c),(a,b)} be a relation on A, then R is :

Let a ,b ,c be positive and not all equal. Show that the value of the determinant |a b c b c a c a b| is negative.

Let a, b, c be positive and not all equal. Show that the value of the determinant |[a,b,c],[b,c,a],[c,a,b]| is negative