George and Pamela share some marbles.
511 of George's marbles is equal to
513 of Pamela's marbles. Given that Pamela has 10 marbles more than George, how many marbles do they have altogether?
511 of George's marbles = 513 of Pamela's marbles
Number of George's marbles = 11 u
Number of Pamela's marbles = 13 u
Number of marbles that Pamela has more than George
= 13 u - 11 u
= 2 u
2 u = 10
1 u = 10 ÷ 2 = 5
Total number of marbles
= 11 u + 13 u
= 24 u
= 24 x 5
= 120
Answer(s): 120
