Question

How many 3 digit numbers are divisible by 7 find by AP

Answer 1

Answer:

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Step-by-step explanation:

Thus there are 128 3-digit numbers divisible by 7.

Answer 2

Answer:

numbers begin from 105 .......994

here a= 105

l= 994

n=?

d= 7

so

994 = 105+(n-1) 7

= 105+7n-7

994= 98+7n

994-98 = 7n

896/7 = n

n= 128

so 128 three digit numbers are divisible by 7.

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