Question

Hema bought two pairs of jeans for rupees 1450 each

she sold one of them at a gain of 8% and the other at a loss of 4% find her gain or loss percent in the whole transaction

Answer 1

YOUR ANSWER
1450 × 2 = 2900
She paid 2900 to shopkeeper

Gaiñ = 8%
8% of 1450
$\frac{8}{100} \times 1450 = 116$
$1450 + 116 = 1566$

Loss = 4%
4% of 1450
$\frac{4}{100} \times1450 = 58$
$1450 - 58 = 1392$

LOSS = 1392 = -1392

Total Transactions= profit + loss

= 1566 + ( -1392)
=174

positive answer means profit

2900 + 174 = 3074

So There was a profit of ₹ 174. she recieved ₹3074.

Answer 2

formula used:
sp=cp*(100+profit%)/100
sp=cp*(100-loss%)/100
profit=sp-cp
profit%=profit/CP*100