Dan earns $42.75 per month working as a tutor. He worked as a tutor for 4 months. He also earned $52.45 walking dogs in the neig
hborhood. He spent $18.50 of his total earning to buy a movie ticket and candy. Dan put 1 over 3 of the remaining money in his savings account. Dan used the following steps to find the total money he put in his savings account:
Only cabinet with two silver coins is cabinet B. The chance of choosing cabinet B is 1/3. Thus, there is a 1/3 chance of the two cabinets contain 2 silver coins.