(Q) A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is ?

A) 9%
B) 12%
C) 7%
D) 5%

View Answer

D) 5%

Explanation :
C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600.
S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680.
Gain =(80/1600*100) % = 5%

Profit and Loss Formulas :
1. Gain = (S.P.) - (C.P.)
2. Loss = (C.P.) - (S.P.)
3. Loss or gain is always reckoned on C.P.
4. Gain Percentage = Gain x 100/C.P
5. Loss Percentage = Loss x 100/C.P
6. Selling Price = (100 + Gain %)x C.P/100
7. Selling Price = (100 - Loss %)x C.P/100
8. Cost Price = 100x S.P/(100 + Gain %)
9. Cost Price = 100x S.P/(100 - Loss %)

View Profit and Loss Formulas

Profit and Loss Formulas :
1. Gain = (S.P.) - (C.P.)
2. Loss = (C.P.) - (S.P.)
3. Loss or gain is always reckoned on C.P.
4. Gain Percentage = Gain x 100/C.P
5. Loss Percentage = Loss x 100/C.P
6. Selling Price = (100 + Gain %)x C.P/100
7. Selling Price = (100 - Loss %)x C.P/100
8. Cost Price = 100x S.P/(100 + Gain %)
9. Cost Price = 100x S.P/(100 - Loss %)