Question

A stationery shop owner bought a scientific calculator for ₹750. He had put a battery worth ₹100 in it. He had spent ₹50 for its outer pouch. He was able to sell it for ₹850. Find his profit or loss

Answer 1

cp=750
overhead=150
real cost=900
sp=850
loss=50
loss %=50/900x100=5.5%

Answer 2

Given
Cost of calculator =₹750
cost of battery = ₹100
cost of outer pouch = ₹50
selling price = ₹850

Now from above
Total price of calculator with all accesorios
= ₹750 + ₹100 + ₹50
= ₹900
Now as C.P > S.P
there is a loss
loss = C.P - S.P
= ₹900 - ₹850
= ₹50

now loss%

$= \frac{loss}{total \: price } \times 100| \\ \\ = \frac{50}{900} \times 100 \\ \\ = \frac{50}{9} \% \\ \\ = 5.56\% \: loss$
Hope it helps