Simon and Vanessa share some pens.
23 of Simon's pens is equal to
25 of Vanessa's pens. Given that Simon has 18 pens less than Vanessa, how many pens do they have altogether?
23 of Simon's pens = 25 of Vanessa's pens
Number of Simon's pens = 3 u
Number of Vanessa's pens = 5 u
Number of pens that Simon has less than Vanessa
= 5 u - 3 u
= 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Total number of pens
= 3 u + 5 u
= 8 u
= 8 x 9
= 72
Answer(s): 72
