Class 8 ( Math Assignment)

 

Basic Mathematical Ability Test

Questions

1. Simplify:

   $$\frac{3}{4}+\frac{5}{8}-\frac{1}{2}$$

2. Find the value of:

   $$25\% \text{ of } 640$$

3. A school has 480 students, of whom 55% are girls. How many boys are there?

4. Simplify:

   $$3x+7-2x+5$$

5. Solve the equation:

   $$3x+7=25$$

6. The ratio of boys to girls in a class is 3 : 2. If there are 30 boys, how many girls are there?

7. A rectangular playground is 25 m long and 16 m wide. Find its area and perimeter.

8. A shopkeeper buys a school bag for Rs. 800 and sells it for Rs. 920. Find the profit and profit percentage.

9. A bus travels at an average speed of 45 km/h. How far will it travel in 2 hours 40 minutes?

10. The angles of a triangle are $x^\circ$, $2x^\circ$, and $3x^\circ$. Find the value of x and the three angles.

11. Find the mean of the following numbers:
    12, 15, 18, 10, 20, 15

12. A water tank is in the shape of a cuboid measuring 2 m × 1.5 m × 1 m.
    a. Find its volume in cubic metres.
    b. How many litres of water can it hold?