Question

5 months : 1.5 years
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Answer 1

1 year = 12 months

1.5 years =18 months

5 months : 1.5 year = 5:18

Answer 2

Answer:

1 year= 12 months

1.5 year= 18 months

so, 5months = 1.5 year=5:18

hope it helps