Correct Answer: 21 : 28 : 23
Explanation:
Let investment of Aarti during first year = 5a
Investment of Vinita during first year = 7a
Investment of kamla during first year = 6a
Then, their investments during second year are
⇒ (126/100) x 5a : (120/100) x 7a : (115/100) x 6a
= 630 : 840 : 690 = 21 : 28 : 23
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