Question

Rita purchased 150 kg of wheat at the rate of Rs. 7 per kg. She sold 50 kg at a profit of 10%. At what rate/kg should she sell the remaining to get a profit of 12% on the total deal?

Answer 1

The purchasing price is :

150 × 7 = 1050

For the overall profit to be 12% the selling price should be :

112/100 × 1050 = 1176

= 1176

The buying price of 50kg is :

50 × 7 = 350

Selling price is :

110/100 × 350 = 385

The remaining amount :

1176 - 385 = 791

The remaining mass is :

150 - 50 = 100kg

791/100 = 7.91

Rs 7.91 per kg