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Question 1:

If $30 \%$ of $(x-y)=20 \%$ of $(x+y)$, then what percent of $x$ is $y$ ?

Question 2:

Kelvin and Kim can together finish a work in 25 days. They worked together for 15 days and then Kim left. After that, Kelvin finished the remaining work in 12 days. In how many days, can Kelvin alone finish the work?

Question 3:

Mr. Chandan lends $\frac{1}{3}$ of his income at $7 \%$, $\frac{2}{5}$ at $10 \%$ and rest of his income at $12 \%$ interest. After two years his interest is Rs. 1430, then find the initial amount that he had lend.

Question 4:

The ratio of boys and girls in a school is $35: 39$. If the average of boys and girls in the school is 740, then the number of girls in the school is:

Question 5:

The perimeter of the base of a right circular cylinder is $44 \mathrm{~cm}$ and its height is $8 \mathrm{~cm}$. Then, volume of the cylinder is (Take $\pi=\frac{22}{7}$ )

Question 6:

An aeroplane covers a certain distance at a speed of $280 \mathrm{~km} / \mathrm{h}$ in hours $4 \frac{3}{4}$ . To cover the same distance in 7 hours, it must travel at a speed (in $\mathrm{km} / \mathrm{h}$ ) of:

Question 7:

The smallest four-digit number which is exactly divisible by 18, 32 and 48 is:

Question 8:

$78-\left\{3^{3} \times 2^{4} \div(9-\overline{26-41})\right\}=?$

Question 9:

A shopkeeper sells 950 grams of tea equal to the cost price of 1kg of tea.What is his profit percentage :

Question 10:

The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by $0.2$ year. The average age of the new students is :