1.

Sum of first four consecutive terms is 40 and sum of first seven terms is

Answer»

ANSWER:

x+2x+3x+4x=40

10x=40

x=4

so, 7 terms=x+2x+3x+4x5x+6x+7x=28x

28x=28*4=112



Discussion

No Comment Found

Related InterviewSolutions