Answer :

Let the quantity of 90% acid solution be x litres.


quantity of 97% acid solution = (21 - x) litres


Now,


90% of x + 97% of (21 - x) = 95% of 21



7x = 21(97 - 95)


7x = 42


x = 6


Thus, 90% acid solution = 6 litres


97% acid solution = 21 - 6 = 15 litres


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Solve the followiNCERT - Maths Exemplar

Solve the followiNCERT - Maths Exemplar

Solve for x and yRS Aggarwal - Mathematics

Sum of the areas Mathematics - Board Papers