Ram while purchasing purchased 1200 gm instead of 1000 gm by fooling ...
Given
Ram while purchasing purchased 1200 gm instead of 1000 gm
While selling he sells 800 gm instead of 1000 gm
From formula:
Gain% = (Gain/C.P.) × 100
Let the cost price of 1000 gm = Rs. 1000
But, Ram purchased 1200 gm instead of 1000 gm
So, the cost price of 1200 gm = Rs. 1000
Now, while selling he is giving 800 gm instead of 1000 gm
And, he is selling product at cost price
So, S.P of 800 gm = Rs. 1000
Then, S.P of 1200 gm = Rs. (1000/800) × 1200
S.P of 1200 gm = Rs. 1500
Now, gain = Rs. 1500 – Rs. 1000
⇒ Gain = Rs. 500
Gain % = (Gain/C.P.) × 100
⇒ Gain % = (500/1000) × 100= 50%
∴ The profit percentage is 50%.
Hence, the correct option is (B).