Irene and Wendy have 490 beads altogether. Wendy has four times as many beads as Irene. How many beads must Wendy give to Irene so that they have the same number of beads?
|
Irene |
Wendy |
Total |
Before |
1 u |
4 u |
490 |
Change |
+ ? |
- ? |
|
After |
245 |
245 |
490 |
Total number of beads that Irene and Wendy have
= 1 u + 4 u
= 5 u
5 u = 490
1 u = 490 ÷ 5 = 98
Number of beads that Irene and Wendy each has in the end
= 490 ÷ 2
= 245
Number of beads that Wendy must give to Irene
= 245 - 98
= 147
Answer(s): 147