Question

3. b. 9.
29. Find the sum of all the multiples of 3 lying between 250 and 1000.​

Answer 1

Answer:

300 answer of the words of wisdom of wisdom Android app then send screen shot attached is a good time rip Bangladesh is this

Answer 2

Answer:

156375

a=252

d=3

999 is the last multiple of 3 before 1000.

999=252+(n-1)d

999-252=3(n-1)

747=3(n-1)

747/3=n-1

249=n-1

n=249+1

n=250

Sum of 250 terms=n/2(a+l)

250/2(252+999)

125(1251)

156375