Divide by 25

n ÷ 25

The trick, step by step

1. Multiply by 4: 675 × 4 = 2700.

   675× 42700

2. Divide by 100: 2700 ÷ 100 = 27.

   2700÷ 10027

given working answer taken away

Why it works

25 = 100 ÷ 4, so dividing by 25 is multiplying by 4 and dividing by 100. It is like counting how many ₹25 in a sum: four in every ₹100.