Question

identify the alternative digit that replace the question mark.
i) 8:56::6:?
ii) 3:30::4:?

Answer 1

$i)\ 8:56::6:\ ?\\ \\ \Rightarrow \frac{8}{56}= \frac{6}{?} \\ \\ \Rightarrow ?= 6 \times \frac{56}{8}\\ \\ \Rightarrow ?=6 \times 7\\ \\ \Rightarrow ?= \boxed{42}$

$ii)\ 3:30::4:\ ?\\ \\ \Rightarrow \frac{3}{30}= \frac{4}{?} \\ \\ \Rightarrow ?= 4 \times \frac{30}{3} \\ \\ \Rightarrow ?=3 \times 10\\ \\ \Rightarrow ?= \boxed{30}$

Answer 2

8:56::6:42
3:30::4:40 is solution