If the perimeter of a semi-circle is 36 cm, then find its radius (in cm).

The side of an equilateral triangle is 14 cm. Find its area (in sq.cm).

The line graph shows the number of deaths due to road accidents in a certain state. Study the diagram and answer the following questions.

If on an average Rs 50 lakhs was paid as insurance for each death due to a road accident, then how much insurance was paid (in Rs crore) in the year 2016?

The line graph shows the number of deaths due to road accidents in a certain state. Study the diagram and answer the following questions.

The number of deaths in 2014 were greater than that in 2017 by ________.

The line graph shows the number of deaths due to road accidents in a certain state. Study the diagram and answer the following questions.

What was the difference in the number of deaths between the years 2011 and 2013?

The line graph shows the number of deaths due to road accidents in a certain state. Study the diagram and answer the following questions.

In which year were the number of deaths lesser than that of the previous year?

A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?

Some carpenters promised to do a job in 15 days but 3 of them were absent and remaining did the job in 20 days. What was the original number of carpenters?