Question

Which of the following conversions is/are incorrect?
(i) 10 decades = 1 century
(ii) 100 centuries = 1 millennium
(iii) 100 inches = 2.54 metres
(iv) 100 millimetres = 10 centimetres

Answer 1

We know that
- 1 millennium = 1000 years
- 1 century = 100 years
- 1 decade = 10 years
- 1 inch = .0254 m

Therefore, (ii) is wrong since 100 centuries = 10 millennium.