Ratio of Rani and komal ages is 3:5 respectively and ratio of komal and Pooja ages is 2:3 respectively.if Rani is 2/5 of Pooja 's age. then what is Rani age ?

RANI:KOMAL 3:5 KOMAL:POOJA 2:3 (MAKE KOMAL RATIO SAME in both relations with pooja and rani)
RATIO will be RANI:KOMAL:POOJA = 6:10:15
*2 (to make rani and pooja ratio 2:5)
12:20:30 FINAL age

Rani=12 years. komal =20 years, pooja= 30 years