Question

In a certain code language, $481$ means 'sky is blue', $246$ means 'sea is deep' and $698$ means 'sea looks blue'.

What number is the code for sea?

• A. $4$
• B. $6$
• C. $8$
• D. $9$

Answer 1

Answer: (B)

$6$

Sea $=6$
Let eq. $\to \left(1\right)$ Sky is blue $481$
eq. $\to \left(2\right)$ Sea is deep $246$
eq. $\to \left(3\right)$ Sea looks blue $698$
From eq. $\left(1\right)$ and $\left(2\right)$
Word "$is$" is common and No. '4' is common is $=4$
From eq. $\left(1\right)$ and $\left(3\right)$
Word "$blue$" is common and No. "$8$" is common blue $=8$
From eq. $\left(2\right)$ and $\left(3\right)$
Word "$Sea$" is common and No. "$6$" is common Sea $=6$
if is $=8$, blue $=8$, then sky $=1$
if sea $=6$, is $=4$, then deep $=2$
if sea $=6$, blue $=8$, then looks $=9$
Hence, option 'B' is correct.