Question

Useful life of power tiller is __________

(a) 10 years

(b) 15 years

(c) 5 years

(d) 2 years

I have been asked this question in an international level competition.

The origin of the question is Farm Tractor in portion Farm Tractor of Farm Machinery

Answer 1

The correct choice is (a) 10 years

For explanation I would say: A power tiller is generally used for 10 years. After that duration, the body of the tiller including the blades/tines are worn out and will not be efficient.