Question

Hema bought two pair of jeans for 1450 rs each she sold one of them at a gain of 8% and other at a loss of 4% find her gain or loss percent in the whole transaction

Step by step

Answer 1

1 pair cost=₹1450
2 pair cost=1450×2=₹2900
1pair sold at=8%gain
Sp=1450+(1450×8%)
=₹1566

other pair sold at=4%loss
Sp=1450-(1450×4%)
=₹1392
Total cp=₹2900
Total sp=1392+1566=₹2958
Clearly he makes gain
Gain=2958-2900=₹58
Gain%=gain/cp×100
=58/2900×100
=2%
gain%=2%

THANKS sis

Answer 2

Step-by-step explanation:

CP of 1st pair of jeans = ₹1450

CP of 2nd pair of jeans = ₹1450

Total CP of both the pairs of jeans = ₹1450 + ₹1450 = ₹2900

Gain on 1st pair of jeans = 8%

SP of 1st pair of jeans = {(100+Gain%)/100}*CP = {(100+8)/100}*₹1450 = ₹1566

Loss on 2nd pair of jeans = 4%

SP of 2nd pair of jeans = {(100-Loss%)/100}*CP = {(100-4)/100}*₹1450 = ₹1392

Total SP of both the pairs of jeans = ₹1566 + ₹1392 = ₹2958

Therefore, it's a gain.

Gain = SP - CP = ₹2958 - ₹2900 = ₹58

Gain% = (Gain/CP)*100 = (₹58/₹2900)*100 = 2%

Hope it helps...

Thank You