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Instructions
What will come in place of the question mark (?) in the following questions ?
Solution
We need to find the value of $$\frac{3}{5} \times \frac{5}{7} \times \frac{2}{9} \times 630$$
Note that $$630 = 2 \times 5 \times 7 \times 9$$
So, the value equals $$\frac{3}{5} \times \frac{5}{7} \times \frac{2}{9} \times 2 \times 5 \times 7 \times 9$$
Which equals $$3 \times 5 \times 2 \times 2 = 60$$
Hence, the correct answer is option (d)
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