Step-by-step explanation
From the statement, we know that:
• a jar contains 100 tickets for a drawing,
,
• among those tickets are 7 winning tickets.
We must find the odds in favour of winning.
The odds in favour of winning are:
Odds in favour = Number of successes : Number of failures
In this case, we have:
• Number of successes = 7,
,
• Number of failures = 100 - 7 = 93.
So we have:
Answer
7:93