Question

A dealer sells a tape recorder at Rs. 990 and gains 10% profit on it. Cost price of the tape recorder is

Answer 1

Sailing rate=990

profit =10%

Cost price= Sailing rate - profit

=990 - 99

=891. (answer)

I hope this will help you.

Answer 2

Step-by-step explanation:

Let the cost price be X

$x + x \times \frac{10}{100} = 990$

$x + \frac{x}{10} = 990$

$\frac{11x}{10} = 990$

$11x = 9900 \\ \\ x = \frac{9900}{11}$

X. =900. Answer