Numbers divisible by 9 between 43 and 481 are:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 49
Formula used:
Nth term of the AP
Tn = a + (n - 1)d ---- (1)
Where Tn = nth term, a = first term, n = number of terms and d = difference
Calculations:
First number and last number that are divisible between 43 and 481 are 45 and 477.
Tn = 477, a = 45, d = 9
Using equation (1), we get
⇒ 477 = 45 + (n - 1)9
⇒ 53 = 5 + n - 1
⇒ n = 49