SOLUTION: A trader has 100 Kg of wheat, part of which he sells at 5% profit and the rest at 20% profit. He gains 15% on the whole. Find how much is sold at 5% profit?

Question 452034: A trader has 100 Kg of wheat, part of which he sells at 5% profit and the rest at 20% profit. He gains 15% on the whole. Find how much is sold at 5% profit?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A trader has 100 Kg of wheat, part of which he sells at 5% profit and the rest at 20% profit.
He gains 15% on the whole. Find how much is sold at 5% profit?
:
Let x = amt sold at 5%
then
(100-x) = amt sold at 20%
:
A typical mixture equation
.05x + .20(100-x) = .15(100)
solve for x
RELATED QUESTIONS
a trader of 100 kgs sugar part of which he sold 8% proit and rest he at 18% profit. he... (answered by ankor@dixie-net.com)

Respected sir, [1] 15 litres of a mixture contains 20% alcohol and the rest water.If 3... (answered by radikrr)

A trader sells two T-shirts at $48 each. She gains 25% on the cost price for one T-shirt... (answered by MathTherapy)

a trader buy some eggs at #15 she find that five of them are broken she sells the rest of (answered by ikleyn)

A trader mixes three varieties of groundnuts costing Rs. 50, Rs. 20 and Rs. 30 per kg in... (answered by mananth)

A trader would incur a loss of 15%, if he sells pens at Rs.10.20 per pen. If 12.5% profit (answered by ghostrecog)

Hi A grocer buys 20 cases of oranges at $15 a case. Each case has 10kg of oranges. If... (answered by jorel1380,MathTherapy)

A farmer has 120 acres of land on which she plans to grow wheat and corn. Each acre of... (answered by ikleyn)

A farmer has 1000 acres of land on which he can grow corn, wheat and soybean. Each acre... (answered by ikleyn)