Pierre, Ryan and Curry collected stamps in the ratio of 10 : 6 : 9. After Curry gave
310 to Pierre and Ryan, Curry had 80 less stamps than Pierre. The number of stamps that Ryan had increased by 40%. How many stamps did Pierre and Curry have in the end?
| |
Pierre |
Ryan |
Curry |
| Before |
10 u |
6 u |
9 u |
| Change |
+ 0.3 u |
+ 2.4 u |
- 2.7 u |
| After |
10.3 u |
8.4 u |
6.3 u |
Number of stamps that Curry gave to Pierre and Ryan
=
310 x 9 u
= 2.7 u
Number of stamps that Ryan received from Curry
=
40100 x 6 u
= 2.4 u
Number of stamps that Pierre received from Curry
= 2.7 u - 2.4 u
= 0.3 u
Number of less stamps that Curry had less than Pierre
= 10.3 u - 6.3 u
= 4 u
4 u = 80
1 u = 80 ÷ 4 = 20
Number of stamps that Pierre and Curry had
= 10.3 u + 6.3 u
= 16.6 u
= 16.6 x 20
= 332
Answer(s): 332
