A) 80B) 4If 4 A.M's are inserted between 3 and 33, then their common d

1.	A) 80B) 4If 4 A.M's are inserted between 3 and 33, then their common difference isC) 3
Answer» Let the 4 arthmetic means be a1, a2, a3, a4. The total number of terms in series is 6 The AP is 3 , a1 , a2 , a3 , a4 , 33 t6 = 33 a + (6-1)d = 33 3+(5)d = 33 5d = 33-3 5d = 30 d = 30/5 d = 6 Therfore, common difference is 6

A) 80B) 4If 4 A.M's are inserted between 3 and 33, then their common difference isC) 3

Answer»

Let the 4 arthmetic means be a1, a2, a3, a4. The total number of terms in series is 6

The AP is 3 , a1 , a2 , a3 , a4 , 33

t6 = 33

a + (6-1)d = 33

3+(5)d = 33

5d = 33-3

5d = 30

d = 30/5

d = 6

Therfore, common difference is 6