PSLEThere are some stickers in albums S and T. 75% of the stickers in album S and 10% of the stickers in album T are round stickers. There is an equal number of square stickers in both albums. If there are 156 more round stickers in album S than in album T, how many stickers are there in both albums altogether?
S |
T |
Round |
Square |
Round |
Square |
3x9 |
1x9 |
1 |
9 |
27 u |
9 u |
1 u |
9 u |
10% =
10100 =
11075% =
75100 =
34The 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 S than Album T
= 27 u - 1 u
= 26 u
26 u = 156
1 u = 156 ÷ 26 = 6
Number of stickers in both albums
= 27 u + 9 u + 1 u + 9 u
= 46 u
= 46 x 6
= 276
Answer(s): 276