Question:
First term of an arithmatic sequence is 8 and common difference is 5. Find its 20th terms
A98
B103
C111
D87
Answer:
B. 103
Explanation:
a=8 d=5 Xn = a + (n-1)d X20 = 8 + (20-1) x 5 = 8 + 19 x 5 = 8 + 95 = 103
Question:
A98
B103
C111
D87
Answer:
a=8 d=5 Xn = a + (n-1)d X20 = 8 + (20-1) x 5 = 8 + 19 x 5 = 8 + 95 = 103