Instructions
What will come in place of question mark (?) in the given questions ?
Solution
Expression : ?% of (140 ÷ 6) = 7
=> $$\frac{x}{100} \times \frac{140}{6} = 7$$
=> $$\frac{x}{10} \times \frac{7}{3} = 7$$
=> $$x = \frac{7 \times 3 \times 10}{7}$$
=> $$x = 30$$
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