The ratio of the number of apples to the number of oranges in a basket was $2: 3$. When $30$ apples were added to the basket, the new ratio is $3: 2$. How many apples are there in the basket now?

 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.

Which one of the following is not equal to $5.2\%$?

$31 \text{out of} 50$ pupils in a schools wear watches. What percentage of pupils do not wear watches?

There were $60$ apple in a basket. $45\%$ of them were red and the rest were green. $10$ red apples were eaten. What percentage of the remaining apples is red?

Raghu had $18$ pencils. He had $\frac{2}{3}$ as many pencils as Rohan. Rohan had $12$ fewer pencils than Rahim. FInd the ratio of number of pencils that Rahim, Rohan and Raghu have.

There were $300$ pupils in a stadium. $40\%$ of them were boys. $60$ more boys entered the stadium. What percentage of the pupils in the stadium are boys now?