PSLEThere are some stickers in albums P and Q. 80% of the stickers in album P and 25% of the stickers in album Q are square stickers. There is an equal number of round stickers in both albums. If there are 165 more square stickers in album P than in album Q, how many stickers are there in both albums altogether?
P |
Q |
Square |
Round |
Square |
Round |
4x3 |
1x3 |
1 |
3 |
12 u |
3 u |
1 u |
3 u |
25% =
25100 =
1480% =
80100 =
45The number of round stickers in both albums is the same. Make the number of round stickers the same. LCM of 1 and 3 is 3.
Number of more square stickers in Album P than Album Q
= 12 u - 1 u
= 11 u
11 u = 165
1 u = 165 ÷ 11 = 15
Number of stickers in both albums
= 12 u + 3 u + 1 u + 3 u
= 19 u
= 19 x 15
= 285
Answer(s): 285