Question

Sonu buys 40 kg of wheat at 12.50 rs and 30 kg of wheat at 14rs per KG at what rate per kg should he sell the mixture to gain 5% on a whole

Answer 1

40 kg=₹12.50per /kg
40 kg total Cp=12.50×40=₹500
30 kg =14per/kg
30 kg total cp=14×30=₹420
Total weight 30+40=70kg wheat
total money spent=500+420=₹920

Question says we have to gain 5% on whole co
so,920+(920×5%)
= 920+46=₹966
total Sp of mixture=₹966

per kg sp =966/total weight
=966/70
=13.8
He should sell mixutre per kg=₹13.8
Thanks,