PSLEThere are some stickers in albums V and W. 50% of the stickers in album V and 20% of the stickers in album W are oval stickers. There is an equal number of square stickers in both albums. If there are 57 more oval stickers in album V than in album W, how many stickers are there in both albums altogether?
V |
W |
Oval |
Square |
Oval |
Square |
1x4 |
1x4 |
1 |
4 |
4 u |
4 u |
1 u |
4 u |
20% =
20100 =
1550% =
50100 =
12The number of square stickers in both albums is the same. Make the number of square stickers the same. LCM of 1 and 4 is 4.
Number of more oval stickers in Album V than Album W
= 4 u - 1 u
= 3 u
3 u = 57
1 u = 57 ÷ 3 = 19
Number of stickers in both albums
= 4 u + 4 u + 1 u + 4 u
= 13 u
= 13 x 19
= 247
Answer(s): 247