A trader sold 250 articles for GH¢5250.00 at a profit of 25% i. Calculate the cost price of each article
ii. If the trader had wanted 45% profit on the cost price, how much should he have sold each of the articles

An article is sold at a profit of 5% . if it was sold for Rs 250 more, the gain would have been 10% . Find CP of the article.

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Let C.P = x Original S.P = 105100x S.P to earn more = 105 x100 + 250 105 x100 + 250 = 110100 × x 105 x + 25000 = 110 x 5x = 25000 x = 5000

Let C.P = x Original S.P = 105100x S.P to earn more = 105 x100 + 250 105 x100 + 250 = 110100 × x 105 x + 25000 = 110 x 5x = 25000 x = 5000

Step-by-step explanation:

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step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places