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Use the following information:

Eighty five people went to a lottery shop where they could bet on the DhanLaksmi, Rajshri, and Gauri lotteries. It was known that $20$ of them took all three ets, and $55$ of them took at least two of the three bets. Each bet cost Rs. $1$, and the total receipt of the lottery shop was $Rs. 145$.

How many people took exactly one bet?

1. $5$
2. $10$
3. $15$
4. $20$

1 vote
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1 vote