The following table shows the number of units of product produced and sold by a company over the course of six years.

Find the ratio between the total number of units sold in 2013 and 2015 and the number of units produced in 2015 and 2016?

The following pie chart shows the sectors representing the shares of the number of electric buses manufactured in each of 7 different colours in a given year in terms of the central angles (in degrees) with respect to the total number of buses manufactured during that year of all the 7 colours taken together.

What is the difference in the percentage shares of buses of C4 and C6? [Give your answer correct to 2 decimal places.]

The perimeter of a right-angled triangle is 60 cm, and its hypotenuse is 26 cm. Find its area? 

Alipta got some amount of money from her father. In how many years will the ratio of the money and the interest obtained from it be 10:3 at the rate of 6% simple interest per annum?

A number when divided by 192 gives a remainder of 54. What remainder would be obtained on dividing the same number by 16 ?

What will be the area (cm²) of the curved surface of an elliptical cylinder whose height and diameter are 10 cm and 8 cm respectively?

Direction: what should come in place at question mark(?).

$$ {\sqrt{4489}+(71)^{2}-(?)^{2}=2707}$$

Speed of train B is 20% more than speed of train A and length of train A and B is 720 meters and 600 meters respectively. If both trains running in opposite direction cross each other in 24 second, then find speed of trains B (in km/hr)?