Edexcel Mathematics A 2H JAN 2021

Solved in details Edexcel IGCSE Mathematics A 2H January 2021
The QP is here

[Bahrawy]

Salam Alikom Sir,
Thank you very much for these amazing vedios.
Sir where can I get these papers from, what is the source you are using?
I know you are uploading the papers in your google drive, but do you mind sir sharing the original source?

[sanaatamer]

for the last question i keep writing the same thing on the calculator but it gives me an error idk what im doing wrong :(

[abcdefghijklmnopqrstuvwxyz]

can u pls explain why u did two thirds of 7.2 in 50:20