Alligation or Mixture

Quantitative Aptitude - Alligation or Mixture

Solve concentration and mixture problems using alligation rule efficiently.

1. Rule

If mixing two quantities with strengths A and B to get C, ratio = (B−C):(C−A).

2. Application

• Use rule directly for binary mixtures.
• For multiple components, combine stepwise using pairwise mixtures.

3. Quick Tips

• Place strengths correctly above and below.
• Use alligation grid to avoid confusion.

4. Common Errors

• Mixing up placement of A, B, and C in formula.

5. Revision Checklist

• Practice direct and multi-component mix problems.

Summary: Use (B−C):(C−A) quickly with grid to find required ratio for mixtures accurately.