Question

A shopkeeper marks the price of an calculator at 25% above cost price. He then allows a discount of 15% of the marked price and he still makes profit Rs.900. Find out the marked price of an calculator .​

Answer 1

Answer:

Rs. 18000

Step-by-step explanation:

$x(1 + 25\%) \: (1 - 15\%) - x = 900$

$1.0625x - x = 900$

$0.0625x = 900$

$x = 14400$

•••••

$14400 \times (1 + 25\%)$

$\: \: \: \: \: \: \: \: = 14400 \times 1.25$

$\: \: \: \: \: \: \: \: =Rs. 18000$

The marked price of a calculator is $\boxed{\green{Rs. 18000}}$