Question

find the sum of all 3 digit natural numbers which are divisible by 7​

Answer 1

Answer:105 is the smallest 3 digit number that an divided by7 and994 is the largest.

Step-by-step explanation:

so x1=105,xn=994 and d=7

find n,n=(xn - x1/d)+1

so,n=128

then equation of sum

sn=n/2(x1+xn)

n=128/2(105+994)

ie:1099*64=70336

Answer 2

Answer:

105 is the smallest 3 digit number that an divided by 7 and 994 is the largest.

Step-by-step explanation: