Question

If mobile is sold for 10% profit and a calculator at 5% profit, total selling price would  be rupees 2490. But if the mobile is sold for 5% profit and the calculator for 10%  profit, total selling price would be rupees 2455. Find the cost of each. please ans ​

Answer 1

Answer:

If mobile is sold for 10% profit and a calculator at 5% profit, total selling price would  be rupees 2490.

$2490 = \frac{110}{100}x + \frac{105}{100} y$

If the mobile is sold for 5% profit and the calculator for 10%  profit, total selling price would be rupees 2455.

$2455 = \frac{105}{100}x + \frac{110}{100}y$

$x = 1500 \\ y = 800$