Learn the repeat patterns from SSC and Railway percentage questions.
What to focus on
- PYQ patterns often combine percentage with ratio, marks, and population.
- Look for reverse percentage cases.
Quick formula / idea
- PYQ value = concept + speed + pattern recognition
Population rises by 20% and then falls by 10%. Net increase = 8%.
Practice prompts
- Find the net effect of +25% and -20%.
- A marks score drops from 250 to 225. Find the percentage drop.