EXERCISE

 The ratio of the number of men to the number of women to the number of children at a fun fair was $3:5:12$. If there were $480$ adults, then how many children were there?

Sam had $500$ stamps. of his stamps were $5$ local stamps while the rest were foreign stamps. He bought another $200$ foreign stamps. What is the ratio of the number of local stamps to the number of foreign stamps that he had in the end?

For every $8$ pupils who wear spectacles in a class, there are $2$ pupils who do not wear spectacles. Express the number of pupils who wear spectacles as a ratio of the total number of pupils in the class.

What number must be added to each of the numbers $5, 9, 7, 12$ to get the numbers which are in proportion?

Find a number such that the ratio of $\frac{5}{2}$ to the number is the same as the ratio of the number to $\frac{5}{8}$.

A shop owner sold a sofa set for $Rs. 10,000$, losing $Rs. 2500$. Find his loss percentage.

In a furniture shop, $24$ tables were bought at the rate of $₹450$ per table. The shopkeeper sold $16$ of them at the rate of $₹600$ per table and the remaining at the rate of $₹400$ per table. Find her gain or loss per cent.

The ratio of Ram's savings to his expenditure is $5:2$ and that of Manu is $4:3$. If Ram's expenditure is $\frac{1}{3}\mathrm{rd}$ of Manu's expenditure and the sum of their expenditures is $₹3000$, then find the salaries of Ram and Manu, respectively.