Question

Hari bought 20 kg of rice at rupees 36 per kg and 25 kg of rice at rupees 32 per kg.He mixed the two varieties and sold these mixture at rupees 38 per kg. Find his gain percent in the whole transaction.

Answer 1

Find the total weight of the rice:

Total weight = 20 + 25 = 45kg

Find the total cost:

20 kg at Rs 36 per kg = 20 x 36 = Rs 720

25 kg at Rs 32 per kg = 25 x 32 = Rs 800

Total cost = 720 + 800 = Rs 1520

Find the total selling Price:

1 kg = Rs 38

45 kg = 38 x 45 = Rs 1710

Find the gain:

Gain = Selling Price - Cost Price

Gain = 1710 - 1520 = Rs 190

Find the gain percentage:

Gain Percentage = Gain / Cost Price x 100

Gain Percentage = 190 / 1520 x 100 = 12.5%

Answer: The gain is 12.5%

Answer 2

Here is your answer

20 Kg Rice =20 x 36 = ₹720
25 Kg Rice =25 x 32 = ₹800
Total Rice purchase. =₹1520
SP=(20+25)×38
=45×38
=₹1710

Profit=₹(1710-1520). =₹190

$profit\% = \frac{190 \times 100}{1520}$
=12.5%

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