Esther, Nora and Emma had a total of 415 pens. Esther gave
27 of her pens away. Emma gave away 4 times as many pens as Esther and Nora gave away 26 pens. In the end, they had 189 pens left. How many pens did Nora and Emma have in total in the end?
|
Esther |
Nora |
Emma |
Total |
Before |
7 u |
? |
? |
415 |
Change |
- 2 u |
- 26 |
- 8 u |
- 226 |
After |
5 u |
? |
189 |
Number of pens that Emma gave away
= 4 x 2 u
= 8 u
Number of pens given away
= 2 u + 26 + 8 u
= 10 u + 26
10 u + 26 = 415 - 189
10 u = 226 - 26
10 u = 200
1 u = 200 ÷ 10 = 20
Number of pens that Nora and Emma had in the end
= 189 - 5 u
= 189 - 5 x 20
= 189 - 100
= 89
Answer(s): 89