Question

draw less than type of ogive
scores
0-10
10-20
20-30
30-40
40-50
50-60
60-70
number of students
8
12
15
10
20
5
15​

Answer 1

The HCF of 28 and 32 is 4. To calculate the HCF (Highest Common Factor) of 28 and 32, we need to factor each number (factors of 28 = 1, 2, 4, 7, 14, 28; factors of 32 = 1, 2, 4, 8, 16, 32) and choose the highest factor that exactly divides both 28 and 32, i.e., 4.