PSLEThere are some stickers in albums M and N. 80% of the stickers in album M and 25% of the stickers in album N are square stickers. There is an equal number of oval stickers in both albums. If there are 66 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 |
4x3 |
1x3 |
1 |
3 |
12 u |
3 u |
1 u |
3 u |
25% =
25100 =
1480% =
80100 =
45The number of oval stickers in both albums is the same. Make the number of oval stickers the same. LCM of 1 and 3 is 3.
Number of more square stickers in Album M than Album N
= 12 u - 1 u
= 11 u
11 u = 66
1 u = 66 ÷ 11 = 6
Number of stickers in both albums
= 12 u + 3 u + 1 u + 3 u
= 19 u
= 19 x 6
= 114
Answer(s): 114