Question

the price of mobile phone is increased by 20% at first and then decreased by 10% now the price of the phone is rupees 15000 find the original price of the phone. ​

Answer 1

Explanation:

`\text{Let the original price of the phone be } P.`

`P(1+0.2\%)(1-10\%)=15000`

`P=(15000)/(1.2\cdot0.9)`

`P=13888.89`