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Unitary Method

If the cost p...

Question

If the cost price of 50 identical products is y $t h e n t h e c o s t p r i c e o f$ 4 $s u c h p r o d u c t s, i n$ , is :

\frac{25}{2 y}

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\frac{25 y}{2}

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60 y + 9

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\frac{2 y}{25}

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Solution

The correct option is C $\frac{2 y}{25}$
The cost price of 50 identical products is y$
The cost price of one such product thus becomes \cfrac{y}{50}$
Therefore, the cost price of 4 products becomes $4 \times \frac{y}{50} =$ \cfrac{4y}{50} = $\frac{2 y}{25}$

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