Question

a merchant mixes two varieties of rice one costing 35 per kg and another at 45 per kg in the ratio 3:2 if he sells the mixed variety at 60 per kg find his gain or loss percent​

Answer 1

35+45=80/kg

3x+2x=80

5x=80

x=16

3×16=48

2×16=32

48+32=80

he sells it in 60/kg

loss 80_60

=20rs.