In what ratio should a shopkeeper mix two varieties of tea priced at Rs.120 per kg and Rs.130 per kg, so that he can make a profit of 10% on selling the mixture at Rs.136.40 per kg?

1
3 ∶ 4
2
2 ∶ 5
3
1 ∶ 2
4
3 ∶ 2

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