Question

A chemical manufacturer wishes to obtain 700 litres of a 24% acid solution by mixing a 40% acid solution with a 15% solution. How many litres of each solution should be used?

Answer 1

00 x 0.24 = a x 0.40 + ( 700 -a ) x 0.15 = 0.40 a - 0.15 a + 105.00 
168.00 = 0.25a + 105.00 
a = 252 
Solution with 40% ....................252 liters........................ans 

Solution with 15 % ...................700 - 252= 448 liters.........................ans