A, a Hindu widow, whose husband has left collateral heirs, alleging that the property held by her as such is insufficient for her maintenance, agrees, for the purposes neither religious nor charitable to sell a filed, part of such property to B. B satisfies himself by reasonable enquiry that the income of the property is insufficient for A’s maintenance and that the sale of the field is necessary, and acting in good faith, buys the field from A. Will the necessity for the sale be deemed to have existed as between B on the one part and A and the collateral heirs on the other part? Decide.    (5 marks)