# Mathematical Aptitude - Interest

>>>>>>>>Interest

• Option : C
• Explanation : Let the principle be P.
As the amount doubles itself the interest is P too.
So P = P × r × 15/100
⇒ r = 100/15 = 20/3% = 6.66%

• Option : D
• Explanation : 2500 in 5th year and 3000 in 7th year.
So in between 2 years, Rs 500 has increased.
⇒ For a year 500/2 = 250
So, per year it is increasing Rs 250, then in 5 years
⇒ 250 × 5 = 1250
Hence, the initial amount must be 2500 – 1250
= Rs 1250.

## Description

• Simple Interest Questions can be used to give quizzes by any candidate who is preparing for UGC NET Paper 1
• This Simple Interest Questions section will help you test your analytical skills in a tricky method, thereby giving you an edge over other students
• All candidates who have to appear for the Kendriya Vidyalaya Entrance exam can also refer to this mcq section.
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• This Simple Interest Multiple Choice Questions Answers section can also be used for the preparation of various competitive exams like UGC NET, GATE, PSU, IES, and many more.
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Interest