Question

halla el numero que falta:

12 ( 28 ) 8
19 ( 11 ) 6
24 ( x ) 9

a)6 b)21 c)9 d)46

Answer 1

12 ( 28 ) 8
19 ( 11 ) 6
24 ( x ) 9

8x5 = 40 -12 = 28
6x5 = 30 -19 = 11
9x5 = 45 - 24 = 21