Question

a dealer profeses to sell the sweet at cost price. but he uses weight 900 grams instead of 1kg, find his gain percent​

Answer 1

Answer: 10%

Step-by-step explanation:

Incorrect weight = 900 g

Correct weight = 1000 g

Gain = 1000 - 900 = 100 g

Percentage gain = (100 / 1000) x 100 = 10%.

Ans - 10%

^_^

Answer 2

Answer:

10%

Step-by-step explanation:

Let CP be x.

By unitary method, we get

1000 grams' SP = x

1 gram's SP = $\frac{x}{1000}$

900 gram's SP = $\frac{x} {1000} * 900$

                         =  $\frac{9x}{10}$

Gain = $x- \frac{9x}{10}$

         = $\frac{10x - 9x}{10}$

         = $\frac{x}{10}$

Gain Percentage = $\frac{\frac{x}{10}}{x} * 100$

             = $(\frac{x}{10} * \frac{1}{x} ) * 100$

             = $\frac{1}{10} * 100$

             = $10$

Hence,  the dealer earned a gain of 10%.