Directions: Read the below data carefully and answer the following questions.
The table shows the total number of ice cream (Chocobar + Cornetto) was given by Santa Claus on the day of Xmas to 5 children. It also shows the number of Chocobar ice-creams is how much more or less percentage of the total number of Cornetto ice-creams.

What is the difference between the entire number of Cornettos Arun and Kiran have and therefore the total number of Chocobars Barun and Rumi have?

 If $${1\over 4.263}=0.2346$$, find the value of $${1\over0.0004263}.$$

A cylindrical roller made of iron is 1.2 m long. Its internal radius is 24 cm and thickness of the iron sheet used in making the roller is 15 cm. What is the mass (in kg) of the roller, if 1 cm³ of iron has 8 g mass?

One number x is thrice the other number y. If the sum of both the numbers is 20, then what is the values of x and y are respectively ?

If (m + 1) = √n + 3, the value of   $${1\over 2}\left({m^3-6m^2+12m-8\over \sqrt { n}}-n \right)  \ $$ is

By selling 100 pencils, A shopkeeper gains the selling price of 20 pencils. His gain percentage is

Direction: What value will come in place of the question mark (?) in the following question?

32, 50, 86, ?, 212, 302

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