What should come in place of the question mark (?) in the following questions?
Let the required number be equal to X.
So, $$(16\% \times 450) \div (X\% \times 250) = 4.8$$
Therefore, $$72 \times (X\% \times 250) = 4.8$$
Or, $$X\% \times 250 = 15$$
So, $$X=6$$
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