Respuesta :

B. 1/3

9 is 1/3 of 27 since 9x3=27
7 is 1/3 of 21 since 7x4=21
9 is 1/3 of 27 since 9x3 =27
The answer would be 3 because if you divide each number in the larger triangle you will get the numbers in the smaller one