Natural numbers from 10 to 150 how many are divisible by 4
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Let a be the first term and d be the common difference.
First term a = 12.
Common difference d = 4.
Last term a= 148.
We know that number if terms of an AP an = a + (n - 1) * d
148 = 12 + (n - 1) * 4
148 = 12 + 4n - 4
148 = 4n + 8
148 - 8 = 4n
140 = 4n
n = 35
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