$A$ man wills $40 \%$ of his wealth to his wife and the rest to his children. What percentage of the wealth willed to the wife do the children get?

If the given two numbers are respectively $7 \%$ and $28 \%$ of a third number,then what percentage is the first of the second?

Visions Pvt. Ltd. appoints a sales representative on a basic salary of $Rs. 1200$ per month, with the condition that for every $Rs. 10000$ of sales made above the initial $Rs. 10000$, he will receive $50\%$ of his basic salary and $10\%$ of that specific $Rs. 10000$ sales as a reward. There is no incentive for the first $Rs. 10000$ of sales. What should be the total value of sales if the sales representative wants to earn $Rs. 7600$ in a particular month?

The population of a city increases at the rate of $10 \%$ annually. Its present population is $90.51$ lacs. The population $3$ years ago was nearly:

In an examination,there are three papers and a candidate has to get $35 \%$ of the total to pass. In one paper,he gets $62$ out of $150$ and in the second $35$ out of $150$. How much must he get,out of $180$,in the third paper to just qualify for a pass?

In a History examination,the average for the entire class was $80$ marks. If $10 \%$ of the students scored $95$ marks and $20 \%$ scored $90$ marks,what was the average marks of the remaining students of the class?