HARD
CAT
IMPORTANT
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A sum of ₹1000 after 3 years at compound interest becomes a certain amount that is equal to the amount that is the result of a three year depreciation from ₹1728. Find the approximate difference between the rate of compound interest and depreciation, given compound interest is 10% per annum.

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Important Questions on Interest

HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 11
The RBI lends a certain amount to the SBI on simple interest for two years at 20%. The SBI gives this entire amount to Bharti Telecom on compound interest for two years at the same rate annually. Find the percentage earning of the SBI at the end of two years on the entire amount.
MEDIUM
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 12
Find the compound interest on ₹64000 for one year at the rate of 10% per annum compounded quarterly (to the nearest integer).
HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 13
If a principal P becomes Q in two years, when interest R% is compounded half-yearly, and if the same principal P becomes Q in two years, when interest S% is compounded annually, then which of the following is true?
MEDIUM
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 14
Find the compound interest at the rate of 10% for 3 years on that principal which in 3 years at the rate of 10% per annum gives ₹300 as simple interest.
MEDIUM
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 15
The difference between CI and SI on a certain sum of money at 10% per annum for 3 years is ₹620. Find the principal, if it is known that the interest is compounded annually.
HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 16
The population of Mangalore was 1283575 on 1st January 2011 and the growth rate of population was 10% in the last year and 5% in the years prior to it, the only exception being 2009 when because of a huge exodus, there was a decline of 20% in population. What was the population on January 1, 2005?
HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 17
According to the 2011 census, the population growth rate of Lucknow is going to be an increasing AP with first year's rate as 5% and common difference as 5%, but simultaneously the migration rate is an increasing GP with first term as 1% and common ratio of 2. If the population on 31 December 2010 is 1 million, then find in which year will Lucknow witness its first fall in population?
HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 10 - Interest>Level of Difficulty>Q 18
Mohit Anand borrows a certain sum of money from the Mindworkzz Bank at 10% per annum at compound interest. The entire debt is discharged in full by Mohit Anand on payment of two equal amounts of ₹1000 each, one at the end of the first years and the other at the end of the second year. What is the approximate value of the amount borrowed by him?