Two varieties of tea having cost per kg Rs. 36 and Rs. 45 respectively are mixed in the ratio 13:8. How much quantity of this mixture should be sold at Rs. 45 per kg to get profit of Rs. 1950 ?
OPtion
1) 530 kg
2) 420 kg
3) 350 kg
4) 560 kg
5) 280 kg
6) 450 kg
7) 210 kg
8) 360 kg
9) 410 kg
10) None of these
Solution
For (13+8)=21 kg mixture, CP=36*13 + 45*8=Rs. 828
CP per kg=828/21=Rs. 276/7
Profit per kg = SP - CP = 45 - (276/7) = 39/7
⇒ For profit of Rs. 39/7, quantity to be sold = 1 kg
.'. For profit of Rs. 1950, quantity to be sold = 350 kg.
Correct Option 3)