Correct Answer - Option 3 : 19000
Given :
Price of 2nd mobile phone = 35000 rupees
Average price of both the phones = 27000 rupees
Formula used :
Average = total sum of observation/Total number of observation
Calculations :
Total price of both the phone = average price × no of phones
⇒ 27000 × 2 = 54000 rupees
Price of 1st phone + price of 2nd phone = 54000 rupees
Price of the 1st phone = 54000 - price of 2nd phone
⇒ 54000 - 35000
⇒ 19000 rupees
∴ The price of the 1st phone is 19000 rupees
