PSLEThere are some stickers in albums C and D. 80% of the stickers in album C and 25% of the stickers in album D are round stickers. There is an equal number of square stickers in both albums. If there are 55 more round stickers in album C than in album D, how many stickers are there in both albums altogether?
C |
D |
Round |
Square |
Round |
Square |
4x3 |
1x3 |
1 |
3 |
12 u |
3 u |
1 u |
3 u |
25% =
25100 =
1480% =
80100 =
45The number of square stickers in both albums is the same. Make the number of square stickers the same. LCM of 1 and 3 is 3.
Number of more round stickers in Album C than Album D
= 12 u - 1 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Number of stickers in both albums
= 12 u + 3 u + 1 u + 3 u
= 19 u
= 19 x 5
= 95
Answer(s): 95