Find, how many two digit natural numbers are divisible by 7
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Answered by
6
Answer:
an = a+(n-1)d
98 = 14+ (n-1)7
98-14 = (n-1)7
n-1 = 84÷7
n = 12+1
n = 13
so 13 2 digit number are divisible by 7
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Answered by
0
Answer: a=14,21,28......98
D=21-14
=7
An=a+n-1×d
98=14+n-1×7
N=13
13 two digit no r divis
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