Answers

  • qais
  • Content Quality
2016-03-29T13:47:28+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Three digit numbers are from 100 to 999
divisible by 4 = 100, 104, 108.......996
so, this is an AP with first term 100 and common difference = 4
To find number of terms
996 = [100+(n-1)4]
⇒4n -4 = 896
⇒4n = 900
⇒n = 225
now, sum = (225/2)[100+996] = (225×1096)/2
                = 123300
0
2016-03-29T14:20:05+05:30
Three digit numbers are from 100 to 999
divisible by 4 = 100, 104, 108.......996
so, this is an AP with first term 100 and common difference = 4
To find number of terms
996 = [100+(n-1)4]
=4n -4 = 896
=4n = 900
=n = 225
now, sum = (225/2)[100+996] = (225×1096)/2
                = 123300
1 5 1