Question

find the sum of integers between 200 and 300 that are divisible by 7.

Answer 1

after 200 first number divisible by 7 is 203
next will be....210 217 224.............294
so no. are
203 210 217 224 231...........294
it is an arithmatic progression with common difference= 7....now do it @meghanamaggi

Answer 2

thnku

Answer 3

bt which formula to put!?

Answer 4

find total no of terms ......
294=203+(n-1)*7
294-203=91=(n-1)*7
n-1=13
n=13+1=14

Answer 5

sum = (n/2)*(first +last term)
=(14/2)*(203+294)=7*497

Answer 6

thnku