Maths / Arithmetic Progression / Find Sum of N Terms When A.P. and Last Term is Given

QUESTION
 

Find the sum :  large sum_{k=1}^{50}(3k+2)

OPTIONS
A. 

3925

B. 

5994

C. 

4995

D. 

3499

Right Option : A

EXPLANATION
Explain TypeExplanation Content
Text

large a_1=3(1)+2=5;;,;;a_5_0=3(50)+2=152

large S_5_0=50(5 + 152)2=3925

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