Question:
How many multiples of 7 are there between 1 and 100?
A13
B15
C16
D14
Answer:
D. 14
Explanation:
Between 1 and 100, the first multiple of 7 is 7, and the last multiple of 7 is 98. n th term 98 = a +(n-1)d 98 = 7 + (n-1)7 91 = (n-1)7 13 = (n - 1) n = 14