Math, asked by Kunalrao67, 1 year ago

Find the sum of all integers of 3 digits which are divisible by 7

Answers

Answered by diveshsaini88

4

Answer:

please mark me brainlist

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Answered by lalitdixit

0

first no. 105
last no. 994
diference 7
formula n(n+1)/2
u should common 7 in all numbers
then apply formula for (15 to 142)-(1to 14) series
finally u will get ans 70336

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