Question

A shopkeeper bought two phones for Rs. 8,000 each. After selling the

phones, there was a loss of 4% on the 1st phone while a profit of 8% on the

2nd phone. Calculate the overall gain or loss per cent on the whole

transaction.​

Answer 1

Step-by-step explanation:

SP of first phone = 8000×96/100= 7680

SP of second phone= 8000×108/100= 8640

CP of both phones = 8000+8000= 16000

Total SP = 7680+8640= 16320

As SP is greater than cp ,therefore there will be profit

Profit%=( SP-CP/CP)×100

(320/16000)×100

2%

Answer 2

Answer:

2% profit

Step-by-step explanation:

As the shopkeeper bought both phones at Rs. 8000 each.

Total cost price = Rs. 16,000

Assume that the cost price of the 1st phone is Rs. 100

Consider the deal of phone 1,

As it is given, there is 4% loss, the selling price will be = Rs. 96

For CP = 100, SP = 96

So, for CP = 1, SP = 96/100

Now, given, CP = 8000

Hence, SP = 96/100 × 8000 = 7680

so the selling price of 1st phone = Rs. 7680

Consider the deal of phone 2, there is an 8% profit.

Hence, the selling price will be = Rs. 108

For CP = 100, SP = 108

So, for CP = 1, SP = 108/100

Now, given CP = 8000

hence, SP = 108/100 × 8000 = 8640

Thus, the selling price of 2nd phone = Rs. 8640

Here, the total selling price will be = Rs. 7680 + Rs. 8640 = 16320

Now, it can be seen that,

Total selling price > total cost price i.e. Rs. 16320 > Rs. 16000

, there is a profit of Rs. (16320 – 16000) = Rs. 320

the overall profit percentage will be-

Profit% = (Profit/Total Cost Price) × 100 = (320/16000) × 100 = 2

Thus, there is a total of 2% profit for the whole transaction.