Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: 2010 · Marks: · Difficulty:
Rita invested 25\% more than Sunil. Sunil invested 30\% less than Abhinav, who invested ₹ 6000. What is the ratio of the amount that Rita invested to the total amount invested by all of them together?
(a)35 : 104
(b)13 : 29
(c)101 : 36
(d)35 : 103
(e)None of these
Answer
Answer (as printed): D
Explanation
Abhinav's investment $=₹ 6000$. Sunil's investment $=(100-30) \%$ of $₹ 6000=70 \%$ of $₹ 6000=₹\left(\frac{70}{100} \times 6000\right)=₹ 4200$. Rita's investment $=(100+25) \%$ of $₹ 4200=125 \%$ of $₹ 4200=₹\left(\frac{125}{100} \times 4200\right)=₹ 5250$. Total amount invested $=₹(6000+4200+5250)$ $$\text { = ₹ } 15450 . \text { ∴ } \text { Required ratio }=5250: 15450=35: 103 .$$
Explanation as extracted from the printed page; notation may be imperfect.