In the year 2012, it was estimated that there were 36.4 crore internet users worldwide. In the next ten years, that number will be increased by 125 %. Estimate the number of internet users worldwide in 2022.

In the year 2012, it was estimated that there were 36.5 crore Internet users worldwide. In the next ten years, that number will be increased by 135%. Estimate the number of Internet users worldwide in 2022.

Express the number appearing in the following statements in standard form. The universe is estimated to be about 12,000,000,000 years old.

Half lives of two isotopes X and Y of a material are known to be 2xx10^(9) years and 4xx10^(9) years respectively. If a planet forms with equal number of these isotopes, estimate the current age of the planet, given that currently the material has 20% of X and 80% of Y by number

A manufacture of TV sets produced 500 sets in the third year and 700 sets in the seventh year. Assuming that the production increase uniformly by a fixed number every year. Find. (ii) The total production of TV sets in the first ten years.

Find the number of conversion times the Interest is compounded and rate for each:A sum taken for 2 years at 4% per annum is compounded half yearly.

Find the number of conversion times the interest is compounded and rate for following A sum taken for 1 1/2 years at 4% per annum is compounded half yearly.