Math, asked by MushtaqAhmad, 1 year ago

How many three-digit no. are divisible by 7?


MushtaqAhmad: plz answer fast

Answers

Answered by Gandharva8
1
142 three digit number are divisible by 7
Answered by AbhiramiGNath
5
First three digit numbers divisible by 7,as 105 and last three digit number which is divisible by 7 is 994.

This is an AP
a = 105
d = 7
an = 994

n th term of an AP

an = a+(n-1) d

994 = 105 +( n-1) 7

994- 105 = 7n -7

889- 7 = 7n

882 = 7n

n. = 882/7

= 126


126 three digit numbers are divisible by 7

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