Tube lessons

1)

A company rose their production of cars from Rs 40,000 to Rs 48400 in 3 years. rate of growth per annum is

12%
10.5%
10.2%
10%

2)

The bacteria in a culture grows by 10% in first hour, decrease by 5% in the second hour and again increases by 10% in the 3rd hour. If the original count of the bacteria in a sample is 10,000. the bacteria count at the end of 3 hours is

11495
10495
21495
11505

3)

The population of a town increases every year by 5% and if the present population be 100000, the population after 2 years becomes

110000
110250
120000
125000

4)

The value of a piece of land increases every year by 4.5%. If the present value of the land be Rs 200,000. The value of the land after 2 years would be

Rs 218405
Rs 18405
Rs 30305
Rs 208405

5)

The number of literate persons in a village increases every year by 10%. If at present the number of literate persons is 1331, 3 years ago, it was

1100
1000
1200
1050

Mathematics

Eight Standard

Test your understanding of this lesson Compound interest | Part-3:-

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