Instructions
What will come in place of the question mark (?) in the following questions?
Solution
Expression : 82% of 285 + ?% of 456 = 845
=> $$(\frac{82}{100} \times 285) + (\frac{x}{100} \times 456) = 845$$
=> $$233.7 + 4.56x = 845$$
=> $$4.56x = 845 - 233.7 = 611.3$$
=> $$x = \frac{611.3}{4.56} = 134.06$$
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