Question

a laptop and a mobile phone were brought for 4000 and 24000 respectively the the shopkeeper made a profit of 8% on laptop and the loss of 12% on mobile phones find his gain or loss percent on the whole transaction

Answer 1

Hey dear,

First we'll take out the SP of laptop
CP = ₹4000
Profit% = 8% Profit = profit %of CP

Profit = 8/100×4000 Profit = ₹320
SP = CP + Profit
SP = ₹4000 + ₹320
SP = ₹4320 Now, We'll take out the SP of mobile phone

CP = ₹24000
Loss% = 12%
Loss = loss% of CP
Loss = 12/100×24000
Loss = ₹2,880
SP = CP- loss
SP = ₹24000 - ₹2880
SP= ₹21,120
Now, add the sp of both the things = ₹4,320+₹21,120
= ₹25,440
Now add the cp of both the things = ₹4000+₹24000
=₹ 28000
As CP>SP
There is a loss.
Loss = ₹28000-₹25440
Loss = ₹2,560
Loss% = loss/CP ×100
Loss% = 2560/28000×100
Loss% = 9.14285714%
Hope it helps..............................................
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