Question

1~
Ishita invested a sum of Rs 12000 at 5% per annum compound interest. She received an
amount of Rs 13230 after n years. Find the value of n.
2~
The compound interest on Rs 1800 at 10% per annum for a certain period of time is Rs 378.
Find the time in years.
3~ In a factory the production of scooters rose to 46305 from 40000 in 3 years. Find the annual
rate of growth of the production of scooters.
4~ The population of a town increases at the rate of 50 per thousand.. Its population after 2 years
will be 22050. Find its present population.
5~ The population of a certain city was 72000 on the last day of the year 1998. During next wear
it increased by 7% but due to an epidemic it decreased by 10% in the followng year. What
was its population at the ened of the year 2000?
6~. A factory increased its production of three wheelers from 80000 in 1999 to 92610 in 2002.
Find the annual rate of growth of production of three wheelers.
7~ In how much time would Rs 5000 amount to Rs 6655 at 10. per annum compound interest
8~ In what time will Rs. 4400 become Rs 4576 at 8% per annum intend compounded half-
yearly?


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Answer 1

8 solution answer , Thank for the question........