Question

plzz answer this.....​

Answer 1

Answer:

a) 1

b) 2

c) 65/9

d)5150/9

Step-by-step explanation:

a) 2/9 + 3/9 + 4/9 = (2 + 3 + 4)/9 = 9/9 = 1

b) 5/9 + 6/9 + 7/9 = (5+6+7)/9 = 18/9 = 2

here, 6/9 = X5 and 7/9 = X6.

c) solved using Sn = n/2(2a+(n-1)d). here 'a' is the first term and 'n' is the no. of terms.

d) follow ans.(c) only the change is that number of terms is 100 instead of 10.

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