A cistern contains 5 thousand litres of water. If 6% water is leaked, find how many litres of water would be left in the cistern.

A man spends 87% of his salary. If he saves ₹ 325; find his salary.

A number 5.78 x 10³ is wrongly written as 5.87 x 10³; find the percentage error.

In an election between two candidates, one candidate secured 58% of the votes polled and won the election by 18,336 votes. Find the total number of votes polled and the votes secured by each candidate.