The eccentricities of two ellipses x^2/1...

The eccentricities of two ellipses `x^2/144+y^2/25=1` and `x^2/a^2+y^2/b^2=1` are equal, then the value of `a/b` is :

A

`5/12`

B

`13/5`

C

`12/5`

D

`14/5`

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