Andy, Elijah and Curry collected pens in the ratio of 11 : 7 : 10. After Curry gave
710 to Andy and Elijah, Curry had 216 less pens than Andy. The number of pens that Elijah had increased by 60%. How many pens did Andy and Curry have in the end?
| |
Andy |
Elijah |
Curry |
| Before |
11 u |
7 u |
10 u |
| Change |
+ 2.8 u |
+ 4.2 u |
- 7 u |
| After |
13.8 u |
11.2 u |
3 u |
Number of pens that Curry gave to Andy and Elijah
=
710 x 10 u
= 7 u
Number of pens that Elijah received from Curry
=
60100 x 7 u
= 4.2 u
Number of pens that Andy received from Curry
= 7 u - 4.2 u
= 2.8 u
Number of less pens that Curry had less than Andy
= 13.8 u - 3 u
= 10.8 u
10.8 u = 216
1 u = 216 ÷ 10.8 = 20
Number of pens that Andy and Curry had
= 13.8 u + 3 u
= 16.8 u
= 16.8 x 20
= 336
Answer(s): 336
