A radio-active substance has a half life of six months. Three-fourth of the substance will decay in____.

Directions: The bar chart given below shows the percentage distribution of the production of various models of a mobile manufacturing company in 2007 and 2008. The total production in 2007 was 35 lakh mobile phones and in 2008 the production was 44 lakh. Study the chart and answer the following questions.
Percentage of six different types of mobiles manufactured by a company over two year

Total number of mobiles of models A, B and E  manufactured in 2007 was 

Which telecom company has recently changed its name to 'VI'?

The simple interest on a certain sum of the money at 4 % per annum for 4 years is Rs.80 more than the interest on the same sum for 3 years at 5 % per annum. Find the sum.

Which BJP senior leader has died at the age of 75 in Uttarakhand?

India's largest sugarcane producing state?

Which of the following is an example of a mobile operating system?

Recently which Indian fast bowler has retired from all cricket formats?