Shannon had some pens at first. She gave 26 of her pens to her brother and 14 of her pens to her neighbour. After that, her mother gave her another 9 pens. She had 44 pens in the end. How many pens did Shannon have at first?
Fraction of pens left after giving to her brother and her neighbour
= 1 -
26 -
14 = 1 -
412 -
312 = 1 -
712 =
512 Number of pens left after giving to her brother and her neighbour = 5 u
Number of pens left after her mother gave her another 9 pens = 5 u + 9
5 u + 9 = 44
5 u = 44 - 9
5 u = 35
1 u = 35 ÷ 5 = 7
Number of pens that Shannon had at first
= 12 u
= 12 x 7
= 84
Answer(s): 84
