Group employees by salary range (Low/High)?

Short answer: Group employees by salary range (Low/High) var salaryGroups = employees .GroupBy(e => e.Salary > 75000 ?

Explain a bit more

"High" : "Low") .Select(g => new { Range = g.Key, Count = g.Count() }); Follow : Group employees by salary range (Low/High) var salaryGroups = employees .GroupBy(e => e.Salary > 75000 ? "High" : "Low") .Select(g => new { Range = g.Key, Count = g.Count() }); Follow : Group employees by salary range (Low/High) var salaryGroups = employees .GroupBy(e => e.Salary > 75000 ? "High" : "Low") .Select(g => new { Range = g.Key, Count = g.Count() }); Follow : Group employees by salary range (Low/High) var salaryGroups = employees .GroupBy(e => e.Salary > 75000 ? "High" : "Low") .Select(g => new { Range = g.Key, Count = g.Count() }); Follow :

Real-world example (ShopNest)

A sales report joins orders and customers, then GroupBy(c => c.City) to show revenue per city.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.