Question

The population of a town was 1,60,000 three years ago, If it increased by 3%, 2.5% and 5% respectively in the last three years, then the present population in
A) 155679 B) 167890 C) 179890 D) 177366

Answer 1

Population after 3% increase:

160000 × 3/100 + 160000 = 4800 + 160000

= 164800

Population after 2.5% increase:

164800 × 2.5/100 + 164800 = 4120 + 164800

= 168920

Population after 5% increase:

168920 × 5/100 + 168920 = 8446 + 168920

= 177366

Thus option (D) is right ✓