Unique Academic Board Solutions for Exercise 1: Practice Exercise

$175$ candidates appeared for an examination, of which $140$ passed. The pass percentage is:

A housewife saved Rs. $2.50$ in buying an item on sale. If she spent Rs. $25$ for the item, approximately how much per cent did she save in the transaction?

The difference between a number and its two-fifths is $510$. What is $10\%$ of that number?

In an examination, $35\%$ of the students passed and $455$ failed. How many students appeared for the examination?`

$405$ sweets were distributed equally among children in such a way that the number of sweets received by each child is $20\%$ of the total number of children. How many sweets did each child receive?

A scored $30\%$ marks and failed by $15$ marks. B scored $40\%$ marks and obtained $35$ marks more than those required to pass. The pass percentage is:

$37\frac{1}{2}\%$ of the candidates in an examination were girls, $75\%$ of the boys and $62\frac{1}{2}\%$ of the girls passed and $342$ girls failed. The number of boys failed was:

If the annual increase in the population of a town is $5\%$, and the present number of people is $8000$, then the population in $3$ years will be: