Abhijit Guha Solutions for Chapter: Alligation and Mixture, Exercise 1: Practice Problems Level 1

Mixture $1$ contains $25$ per cent of milk and mixture $2$ contains $30$ per cent of milk. A container is filled with $6$ parts of the first mixture and $4$ parts of the second mixture. The percentage of milk is

In a mixture of milk and water, the proportion of water by weight was $75$ percent. If in the $60 \mathrm{g}$ mixture, $15 \mathrm{g}$ water was added, what would be the percentage of water in the new mixture?

A vessel has $60 \mathrm{L}$ of milk from which $6 \mathrm{L}$ of milk was taken out and replaced with equal amount of water. The process was repeated further $2$ times. How much milk is now in the vessel?

In a cement plant, there are $600$ employees, consisting of officers and workers. The average monthly salary of employee is $₹ 3,000 /-$. The áverage salary of an officer is $₹ 8,000$ and that of a worker is $₹ 2,000 /-$. The number of workers is more than the number of officers by

An HR executive spends four times than he saves. In $2011$, his income increases by $20$ per cent and his expenditure also increases by $30$ per cent, then the percentage change in his savings is

A man borrows a total sum of $₹ 1$ lakh from AZ bank and GLN bank. To AZ bank, he pays $3$ per cent and he pays $8$ per cent to GLN bank per annum simple interest. If he pays $₹ 7,000 /-$ of total interest in $2$ years to both the banks, then how much he borrowed from GLN bank?

A child saves $₹ 24$ with $60$ coins consisting of $50 \mathrm{p}$ or $25 \mathrm{p}$ coins. Then the no. of $25 \mathrm{p}$ coins he had is

An amount of $₹ 1,620$ was divided among $90$ boys and girls. Each boy gets $₹ 40$ whereas each girl gets $₹ 10$. The number of girls is more than the number of boys by