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5. Comparing Quantities using Proportion
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Q6 of 48 Page 118

The population of Hyderabad was 68,09,000 in the year 2011. If it increases at the rate of 4.7% per annum. What will be the population at the end of the year 2015.

The population of Hyderabad (P) = 68,09,000

Time period (n) = 2015-2011 = 4


Rate of interest (R) = 4.7%




= 6809000×1.0474


= 81821994


∴ The population of Hyderabad at the end of 2015 = 8,18,21,994


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4

Find the amount and the compound interest on Rs. 6500 for 2 years, compounded annually, the rate of interest being 5% per annum during the first year and 6% per annum during the second year.

5

Prathibha borrows Rs. 47000 from a finance company to buy her first car. The rate of simple interest is 17% and she borrows the money over a 5 year period.

Find:


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(b) her equal monthly repayments.

7

Find Compound interest paid when a sum of Rs. 10000 is invested for 1 year and 3 months at 8 % per annum compounded annually.

8

Arif took a loan of Rs. 80,000 from a bank. If the rate of interest is 10% per annum, find the difference in amounts he would be paying after 1years, if the interest is compounded annually and compounded half yearly.

Questions · 48
5. Comparing Quantities using Proportion
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