PSLEThere are some stickers in albums U and V. 90% of the stickers in album U and 20% of the stickers in album V are square stickers. There is an equal number of round stickers in both albums. If there are 175 more square stickers in album U than in album V, how many stickers are there in both albums altogether?
U |
V |
Square |
Round |
Square |
Round |
9x4 |
1x4 |
1 |
4 |
36 u |
4 u |
1 u |
4 u |
20% =
20100 =
1590% =
90100 =
910The number of round stickers in both albums is the same. Make the number of round stickers the same. LCM of 1 and 4 is 4.
Number of more square stickers in Album U than Album V
= 36 u - 1 u
= 35 u
35 u = 175
1 u = 175 ÷ 35 = 5
Number of stickers in both albums
= 36 u + 4 u + 1 u + 4 u
= 45 u
= 45 x 5
= 225
Answer(s): 225