Question
A box contains some purple, grey and brown chocolate bars. The ratio of the number of purple chocolate bars to the number of grey chocolate bars is 7 : 9. The ratio of the number of grey chocolate bars to the number of brown chocolate bars is also 7 : 9. What is the ratio of the number of purple chocolate bars to the number of brown chocolate bars in the box?
2 m

Click button first when a symbol is required. X

A box contains some purple, grey and brown chocolate bars. The ratio of the number of purple chocolate bars to the number of grey chocolate bars is 7 : 9. The ratio of the number of grey chocolate bars to the number of brown chocolate bars is also 7 : 9. What is the ratio of the number of purple chocolate bars to the number of brown chocolate bars in the box?