https://foxoyo.com/mcq/21984/half-of-the-villagers-of-a-certain-village-have-their-own-houses-one-fifth-of-the-villagers-cultivates-paddy-one-third-of-the-villagers-are-literate-four0fifth-of-the-villagers-are-below-twenty-five-then-which-one-of-the-following-is-certainly-true