Idonthaveaname Idonthaveaname

25-01-2017
Mathematics

contestada

100 to 150? Need this before midnight!

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Chetan1 Chetan1

25-01-2017

sum of 100 to 150:
a=100 n=50
a50=150
sn=n/2(a+an)
=50/2(100+150)
=25*250
=6250

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