# CBSE Class 7 Mathematics Worksheets/Part 5/Yearly Examination

**CBSE Class 7 Mathematics Worksheets is about some model questions that you can expect for yearly examination. Here you can find out practice problems for class 7 Mathematics.**

**CBSE CLASS 7 MATHEMATICS WORKSHEETS/Part 5/Yearly Examination.Fill in the blanks:**

- 25% = ———— (as fraction in simplest form)
- The coefficient of y in 2x – 3y +5z +6 is —————-
- The value of the expression 3x – y, when x = 2, y= 0 is —————
- 2:5:: 6: x, the value of x is ————–
- The area of a parallelogram is 63 sq.cm. If the base is 9 cm, its height is ——-
**Answer the following:** - The price of a toy car decreased from 400 rupees to 300 rupees. Find the percentage of decrease?
- List four rational numbers between -3 and -1
- The diameter of a tyre is 70 cm. Find the distance covered by it in 10 rounds?
- Add 4x +6xy –y and 5y – 3xy -3x
- Find the value of k, if 4x – 3k = -12, when x = 0.

**ANSWERS:**

- ¼
- -3
- 6
- 15
- 7 cm
- Percentage decrease = (Amount of change/Original amount) x 100

= (100/400) x 100

= 25% - To find rational numbers between -3 and -1, we can convert these numbers to like fractions as -3 = -30/10 and -1 = -10/10.

So the four rational numbers between -3 and -1 are -11/10, -12/10, -13/10 and -14/10. - Given diameter = 70 cm, radius = 35 cm.

Distance covered = Circumference of a circle = 2 x 3.14 x 35 = 219.8 cm

Distance covered in 10 rounds = 219.8 x 10 = 2198 cm - 4x + 6xy – y + (5y – 3xy – 3x) = 4x -3x + 6xy – 3xy – y + 5y

= x + 3xy + 4y - When x = 0, 4x – 3k = -12

4 x 0 – 3k = -12

0 – 3k = -12

k = -12/-3 = 4.