Mrs Kingsley, a former student of Greenford University, made the following three bequests in her will

Mrs Kingsley, a former student of Greenford University, made the following three bequests in her will:

(a) £90,000 to my trustees Nigel and Jill for such diligent students of the economics department of the Greenford University as my trustees shall in their absolute discretion think fit. 

(b) £90,000 on trust to Nigel and Jill to be distributed as they think fit among her “relations and friends”. 

(c) £70,000 to my trustees “on trust for the purposes I shall communicate to them in due course”. 

Mrs Kingsley handed a sealed envelope to Nigel and Jill shortly after making her will, in which the name of a Mr Mehta appeared as the person entitled to the £70,000.   The money is claimed by Mr Kingsley, who is entitled to the residue of his wife’s estate.

Mrs Kingsley has just died. 

Advise Nigel and Jill as to the validity of each of the bequests in Mrs Kingsley’s will.

Thank you again for all your help and support in advance and take care.