Find out the approximate value which should come in place of the question mark in the following questions. (You are not expected to find the exact value. ) $\sqrt {45689}$ = ?

Find out the approximate value which should come in place of the question mark in the following questions. (You are not expected to find the exact value. )

Find out the approximate value which should come in place of the question mark in the following questions. (You are not expected to find the exact value. ) 399.9+ 206x11.009= ?

Find out the approximate value which should come in place of the question mark in the following questions. (You are not expected to find the exact value. )

Find out the approximate value which should come in place of the question mark in the following questions. (You are not expected to find the exact value. ) $(299.99999)^3$ = ?

Mrs. X spends Rs. 535 in purchasing some shirts and ties for her husband. If shirts cost Rs.43 each and the ties cost Rs.21 each, then what is the ratio of the shirts to the ties, that are purchased ?

Anish spends 25% of his salary on house rent, 5% on food, 15% on travel, 10% on clothes and the remaining amount of Rs. 22,500 is saved. What is Anish's salary ?

$2\over5 $th of Anil's salary is equal to Bhuvan's salary and sevenninth of Bhuvan's salary is equal to Chandra's salary. If the sum of the salary of all of them is Rs.77,000, then, how much is Bhuvan's salary?

A tap can fill an empty tank in 12 hours and a leakage can empty the whole tank in 20 hours. If the tap and the leakage are working simultaneously, how long will it take to fill the whole tank?