Question

10 और 200 के बीच सभी प्राकृतिक सख्याआ का यागनात काय
Find the sum of all the natural numbers between 10 and 200 which are divisible by 7
7. 200 और 550 के बीच 9 से विभाजित होने वाली संख्याओं का योग ज्ञात कीजिए।
200 and 550 which are divisible by 9.
Find​

Answer 1

Step-by-step explanation:

natural no. between 10 to 200,

11,12,13,.........................................199.

natural no. between 10 to 200 divisible by 7.

14,21,.....................196.

a=14

d=21-14=7

tn=196

n=?

by using formula,

tn=a+(n-1)d

196=14+(n-1)7

196-14=(n-1)7

182=(n-1)7

182/7=n-1

26=n-1

n-1=26

n=26+1

n=27

there fore,there are 27 natural no. divisible by 7 between 10 to 200