sum of the number of 1 to 20
vjastha:
210 is the answer
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2
sum of number from 1 to 20 is 210
wrong
wrong answer it's 210 not 199
ya its not 199 its 210 the sum of no.s frm 1 to 20
how
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=210
Answered by
1
Hi,
1+2+3+4+5+6+7+8+9+10+11+12+12+13+14+15+16+17+18+19+20=210
Hope it helped u...
1+2+3+4+5+6+7+8+9+10+11+12+12+13+14+15+16+17+18+19+20=210
Hope it helped u...
By using the formula :sum of first n numbers is equal to n(n+1)/2.
=20(20+1)/2
=420/2
=210
So the sum of the numbers from 1 to 20 is 210.
We will check this manually,
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20= 210
=20(20+1)/2
=420/2
=210
So the sum of the numbers from 1 to 20 is 210.
We will check this manually,
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20= 210
how
if it's in a mcq type question then there is no need for any formula ; just add all the given numbers...
can be
humm
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