Question

b) If 5 B 10=1 and 10 B 30=2 then 20 B 80= ?​

Answer 1

Answer:

4

Explanation:

10 B 30 = 2

5 B 10 = 1

subtraction

5 B 20 = 1

multiple 4

then,

20 B 80 = 4 (Ans).