George and Anna share some pens.
78 of George's pens is equal to
711 of Anna's pens. Given that Anna has 12 pens more than George, how many pens do they have altogether?
78 of George's pens = 711 of Anna's pens
Number of George's pens = 8 u
Number of Anna's pens = 11 u
Number of pens that Anna has more than George
= 11 u - 8 u
= 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Total number of pens
= 8 u + 11 u
= 19 u
= 19 x 4
= 76
Answer(s): 76