Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation. If $$4^2 = 7$$, $$5^2 = 7$$, $$6^2 = 9$$, then $$7^2 = ?$$
The logic here is
$$4^2 = 16$$ $$\longrightarrow\ $$ 1 + 6 = 7
$$5^2 = 25$$ $$\longrightarrow\ $$ 2 + 5 = 7
$$6^2 = 36$$ $$\longrightarrow\ $$ 3 + 6 = 9
Similarly,
$$7^2 = 49$$ $$\longrightarrow\ $$ 4 + 9 = 13
$$\therefore\ $$The value of $$7^2$$ in the given system = 13
Hence, the correct answer is Option BCreate a FREE account and get:
