PSLEThere are some stickers in albums Y and Z. 50% of the stickers in album Y and 10% of the stickers in album Z are round stickers. There is an equal number of square stickers in both albums. If there are 48 more round stickers in album Y than in album Z, how many stickers are there in both albums altogether?
Y |
Z |
Round |
Square |
Round |
Square |
1x9 |
1x9 |
1 |
9 |
9 u |
9 u |
1 u |
9 u |
10% =
10100 =
11050% =
50100 =
12The number of square stickers in both albums is the same. Make the number of square stickers the same. LCM of 1 and 9 is 9.
Number of more round stickers in Album Y than Album Z
= 9 u - 1 u
= 8 u
8 u = 48
1 u = 48 ÷ 8 = 6
Number of stickers in both albums
= 9 u + 9 u + 1 u + 9 u
= 28 u
= 28 x 6
= 168
Answer(s): 168