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Question

Ritika expected to get $50 for her birthday, but she only got $35. What was the percentage error?


A
45.9%
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B
32.8%
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C
42.9%
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D
None of these
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Solution

The correct option is C $$42.9\%$$
$$\dfrac{Approximate Value - Exact Value}{Exact Value} \times100$$

$$\dfrac{50-35}{35} \times 100$$ = $$\dfrac{15}{35} \times 100$$
$$\dfrac{1500}{35}$$ = $$42.9$$
percentage of error $$42.9$$.

Mathematics

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