Question

Vipul bought 20 kg of rice at ₹18 and 25 kg of rice at ₹16 per kg. He mixed the two varieties and sold the mixture at ₹19 per kg. Find his gain per cent of the whole transaction.​

Answer 1

Answer:

gain %=12.5%

Step-by-step explanation:

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,Total rice =20+25=45kg

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,Total rice =20+25=45kgTotal cost =Rs.(360+400)=Rs. 760

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,Total rice =20+25=45kgTotal cost =Rs.(360+400)=Rs. 760Now,cost of 45kg rice at Rs. 19 per kg =Rs. 45*19=Rs.855

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,Total rice =20+25=45kgTotal cost =Rs.(360+400)=Rs. 760Now,cost of 45kg rice at Rs. 19 per kg =Rs. 45*19=Rs.855Therefore, Gain=(855-760)=Rs. 95

Cost of 20kg rice at Rs.18 per kg =Rs.20*18=Rs.360Cost of 25kg rice at Rs.16 per kg =Ra. 25*16=Rs.400Thus,Total rice =20+25=45kgTotal cost =Rs.(360+400)=Rs. 760Now,cost of 45kg rice at Rs. 19 per kg =Rs. 45*19=Rs.855Therefore, Gain=(855-760)=Rs. 95Gain %=95/760*100=12.5%

Answer 2

Answer:

The answer is 12½%

Step-by-step explanation:

$cp \: of \: 20kg = 20 \times 18 = rs.360 \\ cp \: of \: 25kg = 25 \times 16 = rs.400 \\ total \: quantity = 20 + 25 = 45kg \\ total \: cost \: price = rs.360 + rs.400 \\ = rs.760 \\ total \: gain = sp - cp \\ = rs.855 - rs.760 = rs.95 \\ = \frac{gain\% \times 100}{cp} \\ = \frac{95 \times 100}{760} = 12\frac{1}{2} \%$