how many 3 digit natural numbers are divisible by 7 ?
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The nearest number greater than 100& divisible by 7 is 105, which is 7*15. Similarly, the nearest number less than999 & divisible by 7 is 994 which is 7*142. So, if u substract 15 from 142, it will give you how many numbers are divisible by 7 in that range.
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Let us try to solve your question by arithmetic progression.
Let us take a = 105 as it is the lowest 3 digit no. divisible by 7
now l= 994 d= 7
by putting l= a+(n-1)d
n-1= (l-a)/d
n-1= 889/7
n=127+1
n=128
the value of n is your answer mate.
Pls mark as brainliest (only if u liked ans.)
Let us take a = 105 as it is the lowest 3 digit no. divisible by 7
now l= 994 d= 7
by putting l= a+(n-1)d
n-1= (l-a)/d
n-1= 889/7
n=127+1
n=128
the value of n is your answer mate.
Pls mark as brainliest (only if u liked ans.)
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