Question

Question:1 . Sohan buys 40 kg of rice at 12.50 per kg and 30 kg of rice at 14 per kg. At what rate per kg should he sell the mixture to gain 5% on the whole?



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Answer 1

13.8rs per kg

Step-by-step explanation:

40×12.5=500

30×14=420

70kg for 920rs

if he wants to gain 5% profit then=920/100×5=46

=920+46=966

per kg rice should be sold to gain 5%profit=920/70=13.14

profit=46/70=0.6

=13.14+0.65=13.8rs per kg

Answer 2

Sonu buys 40 kg of wheat at rs.12.50 per kg

so it's cost is = 40 × 12.5

= 500 rs

Sonu buys 30 kg of wheat at rs. 14 per kg

so it's cost = 30 × 14

= 420 rs

total wheat buys = 40 + 30

= 70 kg

total cost = 500 + 420

= 920 rs

profit must be ,

100 cost ------ 5 profit

920 cost ------- ?? profit

profit = 920 × 5 / 100

profit = 46 rs

so selling price = 920 + 46

= 966 rs

so price of mixture per kg = 966 / 70

= 13 .80 rs