Slot – 1 – Quantitative Aptitude – Arithmetic – Amala, Bina, and Gouri invest money in the ratio
Q. 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?
7250
6350
7000
6000
Answer: 7250
Solution:
Ratio of their interest at the end of a year = 3*6 : 4*5 : 5*4 = 18 : 20:20
As per question 20x -18x = 250
2x = 250
X = 125
So total interest = (18+20+20)*x = 58*125 = 7250
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