PSLEThere are some stickers in albums M and N. 50% of the stickers in album M and 10% of the stickers in album N are square stickers. There is an equal number of oval stickers in both albums. If there are 24 more square stickers in album M than in album N, how many stickers are there in both albums altogether?
M |
N |
Square |
Oval |
Square |
Oval |
1x9 |
1x9 |
1 |
9 |
9 u |
9 u |
1 u |
9 u |
10% =
10100 =
11050% =
50100 =
12The number of oval stickers in both albums is the same. Make the number of oval stickers the same. LCM of 1 and 9 is 9.
Number of more square stickers in Album M than Album N
= 9 u - 1 u
= 8 u
8 u = 24
1 u = 24 ÷ 8 = 3
Number of stickers in both albums
= 9 u + 9 u + 1 u + 9 u
= 28 u
= 28 x 3
= 84
Answer(s): 84