I need someone genius to help me solve this mathematics problem that is giving me headache .thanks

N108

The second flour cost N796.30 per kg

Its N900 per kg

See workings:

First you must remove the profit element from the selling price. This is easily done by dividing the selling price of the mixture (per kg) by 1.25 since the profit is 25% of cost.

Now 810/1.25 = 648. This is the cost of the mixture per kg.

Now you must form an equation as follows:
7/10 (540) + 3/10 (x) = 648

The first term of the equation represents the first kind of flour (recall that it costs 540 per kg)

The second term of the equation represents the other kind of flour (the cost per kg is unknown hence x)

The sum of both terms must give N648 which is the cost of the mixture.

Finally solve the equation for x and you'll find that it is N900 per kg.

The answer is indeed 900.u are a genius. I really appreciate you .thanks .I can. Now go back to my students .

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