Arihant Expert Team Solutions for Exercise 1: Practice Exercise

Out of a total population of $5000$ people in a village the men increased by $10\%$ and women by $15\%$; thus the total population becomes $5600$ in a year. Find how many men were there in the village?

In an examination $70\%$ of candidates passed in English, $80\%$ passed in Mathematics, $10\%$ failed in both subjects. If $144$ candidates passed in both the total number of candidates was:

A man's working hours, a day were increased $20\%$ and his wages per hour were increased by $15\%$. By how much percent were his daily earning increased?

Price of the sugar rises by $20\%$. By how much per cent should the consumption of sugar be reduced so that the expenditure does not changes?

The cost price of goods with a bankrupt is $₹25500$ and if the goods had realised in their full value, his creditors would have received $85$ paise in the rupee. But $\frac{2}{5}$ of the goods were sold at $17\%$ and the remainder at $22\%$ below their cost price. How many paise in rupee was received by the creditors?

A person gave of his $20\%$ income to his elder son, $15\%$ of remaining to the younger son and $10\%$ of the balance he denoted to a trust. He is left with $₹10800$. His income was:

The air consist of $79.2\%$ nitrogen, $20.7\%$ of oxygen, $0.08\%$ of other light gases and the remaining gas is argon. Find out the volume of the air consisting one cubic meter of argon is:

A carpenter undertakes to supply $20000$ tables each for $Rs. 17.25$. He estimates that if $10\%$ are defective, which will be sold at $50\%$, then the profit will be $15\%$ on his whole outlay. When the tables are supplied $70\%$ were found defective. How much loss did carpenter incur?