Question

A farmer grows cereals in his field.In 2/5 of the field he grows wheat in 1/4 of the field he grows maize, and in the rest of the field he grows rice .In what part of the field he grows rice?

Answer 1

total field =1 unit
(2/5)+(1/4)+rice=1
on solving this,
rice=7/20
so, rice grown in 7/20 part