A sum becomes 5 times of itself in 3 years at compound interest (interest is compounded annually). In how many years will the sum becomes 125 times of itself?

Simplify : $$ {(2x)^{2}-(2y)^{2}-(4x)^{2}}$$

A circle has two parallel chords of lengths 6cm and 8 cm. If the chords are 1cm apart and the centre is on the same side of the chords, and then find the length of diameter of the circle.

A man gives 20% of his money to his eldest son, 30% of remaining he gives to his younger son. 10% of the remaining he gives in a school for poor boys still he has Rs.100.80. Find his total sum. 

The table given below shows the information about bats manufactured by 6 different companies. Each company manufactures only plastic and wooden bats. Each company labels these bats as Brand A or Brand B. The table shows the number of plastic bats as a percentage of total bats manufactured by each company. It also shows the ratio of wooden bats labelled A and B. Each company manufactured a total 550000 bats.

What is the total number of wooden bats of brand A manufactured by company T?

Direction: Study the line graph carefully to answer the following questions.
Line graph shows the production (in thousand units) and percentage of exported mobiles, computers and laptops.

Find the total number of Mobiles, Computers and Laptops exported in the year 2011. 

The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. The father's age is: 

Study the following graph carefully to answer the given questions

A is twice efficient as B and together they do the same work in as much time as T and V together. In how many days A can complete the work individually?