6. Hari bought 20 kg of rice at * 36 per kg and 25 kg of rice at 32 pe

1.	6. Hari bought 20 kg of rice at * 36 per kg and 25 kg of rice at 32 per kg. He mixed the twovarieties and sold the mixture at * 38 per kg. Find his gain per cent in the wholetransaction.
Answer» Solution :- Cost of 1 kg rice = Rs. 36 per kgCost of 20 kg rice = 3620 = Rs. 720 Cost of 1 kg rice = Rs. 32 per kgCost of 25 kg rice = 3225 = Rs. 800 Total quantity of rice = 20 + 25 = 45 kg Cost of 45 kg rice = 720 + 800 = Rs. 1520 Selling price of the new mixture = Rs. 38 per kg selling price of 45 kg rice = 3845 = Rs. 1710 Gain = 1710 - 1520 = Rs. 190 Gain = Rs. 190 Gain % = (Gain100)/cost price ⇒ (190*100)/1520 ⇒ 19000/1520 = 12.5 % So, on whole transaction, Hari got profit of 12.5 %

6. Hari bought 20 kg of rice at * 36 per kg and 25 kg of rice at 32 per kg. He mixed the twovarieties and sold the mixture at * 38 per kg. Find his gain per cent in the wholetransaction.

Answer»

Solution :-

Cost of 1 kg rice = Rs. 36 per kgCost of 20 kg rice = 36*20 = Rs. 720

Cost of 1 kg rice = Rs. 32 per kgCost of 25 kg rice = 32*25 = Rs. 800

Total quantity of rice = 20 + 25 = 45 kg

Cost of 45 kg rice = 720 + 800 = Rs. 1520

Selling price of the new mixture = Rs. 38 per kg

selling price of 45 kg rice = 38*45 = Rs. 1710

Gain = 1710 - 1520 = Rs. 190

Gain = Rs. 190

Gain % = (Gain*100)/cost price

⇒ (190*100)/1520

⇒ 19000/1520

= 12.5 %

So, on whole transaction, Hari got profit of 12.5 %