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### Problem of the Day

 Today's Problem:2/15/2013Robert's grandmother is 4 times as old as Robert. If Robert is 19 years old, how old is his grandmother?Michelle's grandfather is 3 times as old as Michelle. If the grandfather is 69 years old, how old is Michelle?In 4 years, Mary's father will be 3 times as old as Mary will be 4 years from now. If Mary is 7 years old now, how old will her father be in 4 years? How old is her father now?When Jimmy was 1/2 as old as he is now, his aunt was 7 times as old as he was. If Jimmy is now 8, how old is his aunt now?If Anne and Bob add their ages together, the sum is 33 years. Anne is 5 years older than Bob. How old is Bob?Previous Problems: 2/14/2013John's father is 3 times as old as John was 2 years ago. If John's father is now 39 years old, how old is John?2/11/2013Look at this carefully before you start to work:If 3a + 5b - 27c + d = 3a + 5b -27c +18, what does d equal?2/7/2013You might find it useful to make a simple picture for this one:Six friends had a race.Bill finished 8 seconds before Anne.Charles finished 4 seconds before Bill.Dan finished 6 seconds after Charles.Ellen finished 10 seconds after Dan.Fran finished 7 seconds before Ellen.In what order did they finish? (Who was first? Who was second?, etc.)If Fran's time was 8:06 (8 minutes and 6 seconds), how long did it take each racer?2/6/2013This is a much easier problem than you might think at first. In fact, you might even be able to do it all in your head.If the rectangle below is 8 inches wide and 5 inches high, what is the total area of the red sections?              2/5/2013In the following addition problem, each letter stands for a different number from 0 to 9, and the letter will stand for the same number every time it is used in the problem. Determine what each letter stands for.                    ba                cb            +    b                aac