Question

A dealer professing to sell his goods at cost price, uses 900gm weight for 1kg. his gain percent is?

Answer 1

Answer:

11.11%

Step-by-step explanation:

Let say cost price for 1kg = 1000gm =  C  Rs

Selling Price of 900 gm = C  Rs

Selling price of 1 gm = C/900   Rs

Selling Price of 1000 gm = (C/900)*1000 =  10C/9   Rs

Gain = 10C/9 - C = C/9

Gain% = {(C/9)/C}* 100 =  100/9 % = 11.11 %

Answer 2

Answer:

The gain % is 11.11%

Step-by-step explanation:

Let the cost price of 1000 gm of goods be x

So, Cost price of 900 gm = $\frac{x}{1000} \times 900 = 0.9x$

SP of 900 gms = CP of 1000 gms = x

Profit = SP - CP

Profit = x- 0.9x = 0.1 x

Profit % = $\frac{0.1x}{0.9x} \times 100$

Profit % = $11.11\%$

Hence The gain % is 11.11%