Mathematics
JAMB 1979
The size of a quantity first doubles and then increases by a further 16%. After a short time its size decreases by 16%. What is the net increases in size of the quantity?
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A.
\(\frac{59300}{625}\)
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B.
\(\frac{50900}{625}\)
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C.
200%
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D.
+100%
Correct Answer: Option C
Explanation
Let x rept. the size of the quantity
2x + \(\frac{116}{100}\) x \(\frac{-84}{100}\)
= 200%
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