In the first 3 ICC World Cup, there used to be 60 overs.
the 1987 cricket world cup(50 overs) was won by Australia
that was there first one
In 1975 first icc cricker worldcup took place.It was held in England.
India is the winner of first t20 worldcup in 2008
And the answer is if it is a ODI then 50 overs but if it is a test match then it depends on number of days.
Pakistan reached worldcup for thee times.
Uruguay in 1930
50 overs per innings.
only 50 overs