If you can't explain a concept simply, you don't understand it well enough — yet.

Ratio, proportion and averages — quick quiz

5 RPF SI-pattern questions on Ratio, proportion and averages. Instant scoring and solutions — see where you stand in a few minutes.

Question 1 of 5

Medium

In what ratio must rice costing Rs 42 per kg be mixed with rice costing Rs 54 per kg so that the mixture is worth Rs 46 per kg?