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How Many Numbers Between 20 And 451 Are Divisible By 9? |
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Answer» The required numbers are 27, 36, 45……450. This is an A.P. with a = 27 and d = 9 Let it has n TERMS. Then Tn = 450 = 27 + (n-1) x9 450 = 27+ 9n - 9 9n = 432 n = 48. The required numbers are 27, 36, 45……450. This is an A.P. with a = 27 and d = 9 Let it has n terms. Then Tn = 450 = 27 + (n-1) x9 450 = 27+ 9n - 9 9n = 432 n = 48. |
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