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## #1 2015-04-16 07:28:02

### Cost Price:

**Question:**

If the profit per cent got on selling an article is numerically equal to its cost price in rupees and the selling price is Rs. 39, then cost price (in Rs.) will be:

**Option A):**

28**Option B):**

20**Option C):**

22**Option D):**

30

**Correct Answer is Option D):**

30

**Explanation:**

SP = Rs. 39.

CP = x(let)

Profit% = CP;

Or, [(39-x)/x]*100 = x; [%profit= (SP-CP)/CP]

3900-100x = x2;

X2+100-3900 = 0;

X = 30. (we cannot take negative value of x)

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## 2015-04-16 07:28:02

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### Re: Cost Price:

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