how many three digits numbers are divisible by 7
Luckysharma11:
7,14,21
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Answered by
1
the no. itself
multiples of seven
multiples of seven
Answered by
8
a= 105 d= 7 n= ? an= 994
an= a+(n-1) d
994 = 105 + (n-1) (7)
994 - 105 = 7 (n-1)
889 = 7(n-1)
n -1 = 127
∴ n = 128.
128 three digit numbers are divisible by 7
an= a+(n-1) d
994 = 105 + (n-1) (7)
994 - 105 = 7 (n-1)
889 = 7(n-1)
n -1 = 127
∴ n = 128.
128 three digit numbers are divisible by 7
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