Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 (15) 1; 7 (22) 3; ? (57) 4
The logic here is
$$4^2-1^3=16-1=15$$Â $$\longrightarrow\ $$Â $$\text{left number}^2-\text{right number}^3=\text{middle number}$$
$$7^2-3^3=49-27=22$$Â $$\longrightarrow\ $$Â $$\text{left number}^2-\text{right number}^3=\text{middle number}$$
Let the required number = $$a$$
Similarly, $$a^2-4^3=57$$
$$\Rightarrow$$ Â $$a^2-64=57$$
$$\Rightarrow$$ Â $$a^2=121$$
$$\Rightarrow$$ Â $$a=11$$
$$\therefore\ $$Required number = 11
Hence, the correct answer is Option B
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