Q. 15.0( 1 Vote )

# Find the sum of t

Answer :

(i) In the A.P.

First term = 1

No. of terms = 75

Common difference = 1

Sum of terms =

⇒ Sum of terms =

⇒ Sum of terms =

⇒ Sum of terms = 2850

(ii) In the A.P.

First term = 1

No. of terms = 125

Common difference = 1

Sum of terms =

⇒ Sum of terms =

⇒ Sum of terms =

⇒ Sum of terms = 7875

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