How many different pairs of numbers (s, t) such that s = 3t can be obtained if s and t are selected from the set of number {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
Choose the correct option.
A) 1
B) 2
C) 3
D) 4
E) 5
Given s=3t   t can take 0,1,2,3, 4   and so s = 0,3,6,9, 12   4 such pairs can be formed.   answer 5
<result>E</result>
How many different pairs of numbers (s, t) such that s = 3t can be obtained if s and t are selected from the set of number {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}