Class 9 (Maths Assignment)

 

Questions

1. Number and Operations:
   Simplify:

   $$\frac{3}{4}+\frac{5}{6}-\frac{1}{3}$$
2. Percentage:
   A school has 800 students. If 35% of them are girls, how many boys are there?
3. Ratio:
   The ratio of boys to girls in a class is 3:2. If there are 40 students in the class, how many boys and girls are there?

4. Algebra:
   Solve for $x$:

   $$3x-7=2x+9$$

5. Algebraic Expression:
   Factorize:

   $$x^2+7x+12$$
6. Profit and Loss:
   A shopkeeper buys a school bag for Rs. 800 and sells it for Rs. 920. Find the profit percentage.
7. Geometry:
   The length of a rectangular garden is 18 m and its breadth is 12 m. Find:
   a) its area
   b) its perimeter
8. Speed, Distance and Time:
   A bus travels at an average speed of 45 km/h. How far will it travel in 2 hours 40 minutes?
9. Statistics:
   The marks obtained by five students in a mathematics test are:
   12, 18, 15, 20, and 10.
   Find the mean mark.
10. Logical Mathematical Reasoning:
    A number is multiplied by 4 and then 6 is added to it. The result is 30. What is the number?