CAT 2019 Slot 1 QA Q23 Ratio, Mixtures & Averages

Question 23 of the Quantitative Ability (QA) section, CAT 2019 Slot 1, with CAT's official answer.

Amala, Bina, and Gouri invest money in the ratio 3 : 4 : 5 in fixed deposits having respective annual interest rates in the ratio 6 : 5 : 4. What is their total interest income (in Rs) after a year, if Bina's interest income exceeds Amala's by Rs 250?
  1. A
    7000
  2. B
    6000
  3. C
    6350
  4. D
    7250

Answer: (D) 7250 Ratio, Mixtures & Averages MCQ

A worked solution for this question is being written. Meanwhile, practise it in a timed mock and see how other aspirants did.