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Instructions
What should come in place of the question mark (?) in the following questions?
Solution
Expression : 60% of 20% of 3/5th of ? = 450
=> $$\frac{60}{100} \times \frac{20}{100} \times \frac{3}{5} \times x = 450$$
=> $$\frac{3}{5} \times \frac{1}{5} \times \frac{3}{5} \times x = 450$$
=> $$x = 450 \times \frac{125}{9}$$
=> $$x = 50 \times 125 = 6250$$
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