calculation/f

Need answer in 45 mins. Please take only if possible to answer within 45mins.

I have attached the question. It is just 1 quetsion with (a) and (b) subpart. Need answer in excel with proper calculation/formual and apart from that if you can give manual answer (calculation) it is highly appreciated.

Please take only if possible to answer within 45mins.

Need answer in 45 mins. Please take only if possible to answer within 45mins.

 

I have attached the question. It is just 1 quetsion with (a) and (b) subpart. Need answer in excel with proper calculation/formual and apart from that if you can give manual answer (calculation) it is highly appreciated.

 

Please take only if possible to answer within 45mins.