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The least 3 digit
natural number divisible by 4 is 100 and the largest 3 digit natural number
divisible by 4 is 996.
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Here , a = 100, d = 4
and tn = 996
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We know that,
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tn = a + (n – 1 ) d
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∴ 996 = 100 + (n – 1 )4
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∴ 996 – 100 = 4 (n – 1)
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∴ 896/4 = n – 1
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∴ 224 = n – 1
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∴ 224 + 1 = n
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∴ n = 225
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How many three digit natural number are divisible by 4?
