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Estimation Using Percentages in Situations

Ritika expect...

Question

Ritika expected to get $50 f o r h e r b i r t h d a y, b u t s h e o n l y g o t$ 35. What was the percentage error?

45.9 %

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32.8 %

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42.9 %

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None of these

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Solution

The correct option is C $42.9 %$
$\frac{A p p r o x i m a t e V a l u e - E x a c t V a l u e}{E x a c t V a l u e} \times 100$

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

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