Question

The sum 1+2+3+4+...+150.S=n(n+1)

Answer 1

Step-by-step explanation:

11325 is sum of 1to 150

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Answer 2

Answer:

11,325

Step-by-step explanation:

a=1

d=1

an=150

sum of n positive integers = n(n+1)/2

n=?

an=a+(n-1)d

therefore 150=1+(n-1)1

149=n-1

n=150

putting the value in formula of sum of n term

Sn=150(150+1)/2

=75*151

=11,325