Sean, Justin and Clint collected stamps in the ratio of 10 : 7 : 10. After Clint gave
45 to Sean and Justin, Clint had 520 less stamps than Sean. The number of stamps that Justin had increased by 80%. How many stamps did Sean and Clint have in the end?
|
Sean |
Justin |
Clint |
Before |
10 u |
7 u |
10 u |
Change |
+ 2.4 u |
+ 5.6 u |
- 8 u |
After |
12.4 u |
12.6 u |
2 u |
Number of stamps that Clint gave to Sean and Justin
=
45 x 10 u
= 8 u
Number of stamps that Justin received from Clint
=
80100 x 7 u
= 5.6 u
Number of stamps that Sean received from Clint
= 8 u - 5.6 u
= 2.4 u
Number of less stamps that Clint had less than Sean
= 12.4 u - 2 u
= 10.4 u
10.4 u = 520
1 u = 520 ÷ 10.4 = 50
Number of stamps that Sean and Clint had
= 12.4 u + 2 u
= 14.4 u
= 14.4 x 50
= 720
Answer(s): 720