Discussion :: Numbers
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How many natural numbers are there between 23 and 100 which are exactly divisible by 6 ?
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Answer : Option D
Explanation :
Required numbers are 24, 30, 36, 42, ..., 96
This is an A.P. in which a = 24, d = 6 and l = 96
Let the number of terms in it be n.
Then tn = 96 
a + (n - 1)d = 96
24 + (n - 1) x 6 = 96
(n - 1) x 6 = 72
(n - 1) = 12
n = 13
Required number of numbers = 13.
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