Question

plz help me to solve this question!!​

Answer 1

Answer:

here's your answer

Step-by-step explanation:

The formula to find class mark is given as, Class mark = (upper limit + lower limit)/2, or (sum of class boundaries)/2.

use this point to solve this problem

Answer 2

Step-by-step explanation:

class mark = upper limit - lower limit

1. 15-10 = 5

2. 20-15 = 5

3. 25-20 = 5

4. 30-25 = 5

5. 35-30 = 5

6. 40-35 = 5