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Question 1:

An amount invested at simple interest gives Rs. 2000 interest at rate of $10 \%$ in 4 years. What is the principal $(\operatorname{in} Rs.)$ ?

Question 2:

A Car can travel of a distance 300 meters in 6 minutes . What is its average speed in $\mathrm{km} / \mathrm{h}$ ?

Question 3:

When a number is increased by 32, it becomes $116 \%$ of itself. What is the number?

Question 4:

The volume of a right circular cone is $924 \mathrm{~cm}^{3}$. If its height is $18 \mathrm{~cm}$, then the area of its base (in $\mathrm{cm}^{2}$ ) is :

Question 5:

The value of $5 \div[5+8-\{4+(4$ of $2 \div 4)-(2 \div 4$ of 2$)\}]$ is

Question 6:

An article is sold for Rs 1725 at $15 \%$ Profit . If it is sold at $15 \%$ loss, then what will be the selling price ?

Question 7:

What is the HCF of $\frac{4}{5}, \frac{6}{8}, \frac{8}{25}$ ?

Question 8:

Average age of 9 men is 45 years. If age of one woman is included, then the average age becomes 44 years. What is the age of woman?

Question 9:

The arithmetic mean of a set of 25 observations is 14 . if the mean of set of 20 of these observation is 15 then the mean of set of remaining 5 observation is:

Question 10:

A alone can do a work in 20 days. M alone can do the same work in 30 days. A, M and B together can do the same work in 6 days. In how many days can $\mathrm{B}$ alone do the work?