Nine tickets to Delhi and two tickets to Amritsar cost as much as two tickets to Delhi and seven tickets to Amritsar. What is the ratio of the cost of a ticket to Delhi that of Amritsar?
1
7 :5
2
4 :7
3
5 :7
4
3 :1
5
7 :9
Nine tickets to Delhi and two tickets to Amritsar cost as much as two tickets to Delhi and seven tickets to Amritsar. What is the ratio of the cost of a ticket to Delhi that of Amritsar?