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Let S = {(a,b,c) in N xx N xx N : a+b+c=...

Let S = {(a,b,c) `in N xx N xx N : a+b+c=21, a le ble c}` and T = `{(a,b,c) in N xx N xx N` : a,b,c are in A.P} where N is the set of all natural numbers . Then the numbers of elements in the set `S cap T` is

A

6

B

7

C

13

D

14

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The correct Answer is:
B
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PATHFINDER-SET,VENN DIAGRAM AND RELATION-QUESTION BANK
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  2. Shade the following sets : A' cup B'

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  3. Shade the following sets : (A cup B) cap (A cup C)

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  4. Shade the following sets : (A cap B) cup (A cap C)

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  5. The following three relations are defined on the set of natural number...

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  6. Let R be the relation defined on the set of natural numbers N as R {...

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  7. A relation R on the set of complex number is defined by z1 R z2 iff (z...

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  8. Let A and B be two sets containing four and two elements respectively....

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  9. Let S = {(a,b,c) in N xx N xx N : a+b+c=21, a le ble c} and T = {(a,b,...

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  10. A relation rho on the set of real number R is defined as follows: xrh...

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  11. If X = {4^n-3n-1: n in N} and Y = {9(n-1):n in N} where N is the set o...

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  16. Let A and B be two sets containing 2 and 4 elements respectively The n...

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  17. For any two real number a and b ,we define a R b if and only if sin^2a...

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  18. Let X = {1,2,3,4,5} The number of different ordered pairs (Y,Z) that c...

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