30%of 140=x% of 840,then x is
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Answer: x = 5.
Explanation:
Given that,
30% of 140 = x% of 840.
Mathematically,
30/100 × 140 = x/100 × 840
=> 42 × x/5 = 14 × 3
=> x = 14 × 3 × 1/42 × 5
=> x = 210 × 1/42
=> x = 5.
More: x% of y = y% of x.
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