Instructions
What will come in place of question mark (?) in the given questions ?
Solution
Expression : $$8\frac{1}{4} \times 2\frac{2}{5} \times ? =12$$
=> $$\frac{33}{4} \times \frac{12}{5} \times x = 12$$
=> $$\frac{33 \times 3}{5} \times x = 12$$
=> $$x = \frac{12 \times 5}{33 \times 3}$$
=> $$x = \frac{20}{33}$$
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