Table:
text: List of highest-grossing Bollywood films
Highest-grossing Bollywood films throughout history
List of highest-grossing Bollywood films throughout history
Year_ Movie Record_Held Studios Nett_Gross
1943 Kismet 6 years Bombay Talkies 10000000
1949 Barsaat 2 years R. K. Films 11000000
1951 Awaara 1-year R.K. Films 12500000
1952 Aan 3 years Mehboob Khan 15000000
1955 Shree 420 2 years R.K. Films 20000000
1957 Mother India 3 years Mehboob Khan 40000000
1960 Mughal-e-Azam 15 years Sterling Investment 55000000
1975 Sholay 19 years G. P. Sippy 150000000
1994 Hum Aapke Hain Koun..! 7 years Rajshri Productions 697500000
2001 Gadar: Ek Prem Katha 5 years Zee Telefilms 755000000
2006 Dhoom 2 2 years Yash Raj Films 802500000
2008 Ghajini 1-year Reliance Entertainment Geetha Arts 1146700000

Question: From list of highest grossing Bollywood films throughout history, what was the last 75,50,000,000 gross?

Question: What was the total net gross in 1957 in list of highest grossing Bollywood films throughout history?