If $$ {\sqrt{4^{n}}=1024}$$, then the value of n is:

The income of C is 20 % more than B's and the income of B is 25 % more than A’s. Find by how much percent is C's income more than A’s? 

In an election only two candidates A and B contested 30% of the voters did not vote and 1600 votes were declared as invalid. The winner, A got 4800 votes more than his opponent thus he secured 51% votes of the total voters on the voter list. Percentage votes of the loser candidate, B out of the total voters on the voter list is:

Find the area of quadrilateral formed by joining points (4,2), (8,2), (8,14) and (4,10). 

A merchant sells a radio at 10 % profit if he bought 10% less and sold it Rs.132 less then he got 10% profit. Find the cost price of radio?

Study the given graph and answer the question that follows.

What is the ratio of the total expenditure in 2015 and 2016 to the total revenue of the company in 2016 and 2018?

A shopkeeper allows a discount of 10% on the marked price of an item but charges a sales tax of 8% on the discounted price. If the customer pays ₹ 3,402 as the price including the sales tax, then the marked price is