Question

if 7=42,6=30,5=20 so 3=

Answer 1

if ,

7 =  42  => 7*6 = 42.

6 = 30 => 6*5 = 30.

5 = 20 => 5*4 = 20.

Like that 3 = 6 => 3*2 = 6.

Answer 2

If ,


7 = 42 [ 7 × 6 = 42 ]


6 = 30 [ 6 × 5 = 30 ]



5 = 20 [ 5 × 4 = 20 ]



Then,


3 = 9 [ 3 × 3 = 9 ]