Ayesha has only Rs. 5 and Rs. 10 coins with her. If the total number of coins she has is 25 and the amount of money with her is Rs. 160, then the number of Rs. 5 and Rs. 10 coins with her are:
1
18 and 7 respectively
2
10 and 15 respectively
3
15 and 10 respectively
4
20 and 5 respectively