A box contains some silver, blue and red chocolate bars. The ratio of the number of silver chocolate bars to the number of blue chocolate bars is 10 : 9. The ratio of the number of blue chocolate bars to the number of red chocolate bars is also 10 : 9. What is the ratio of the number of silver chocolate bars to the number of red chocolate bars in the box?
Silver |
Blue |
Red |
10x10 |
9x10 |
|
|
10x9 |
9x9 |
100 u |
90 u |
81 u |
The number of blue chocolate bars is the repeated identity.
LCM of 10 and 9 = 90
Silver chocolate bars : Red chocolate bars
100 : 81
Answer(s): 100 : 81