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Hi

How can I find the nth term of the sequence 1,3,6,10,15....

Regards

Vyas

1+2+3+4+5=15

Since, we have got all the numbers from 1 to 5, the nth term = 1+2+3+4+5+6=15+6=21

nth term =21

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1,3,6,10,15                 3-1=2, 6-3= 3, 10-6=4, 15-10=5              therefore, we have to add continuous one no. after the other like 1,2,3,4,5
so, 1,3,6,10,15,21,28,36,45                                                       therefore, the ninth term is 45
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1+2+3+4+5=15
1+2+3+4+5=15+6
nth=21
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answer is 45
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45 is the answer
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Sorry dear.
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No idea


Cant tell
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ans 45
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Please find this answer

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There must be no. Of terms in the sequence should be given
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21 is answer
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21 ..
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45 is Answer
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21 is the answer 
 
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21 is the answer
 
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Ans 45
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45 is the answer
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he is correct
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1+2=3
3+3=6
6+4=10
10+5=15
15+6=21
21+7=28
28+8=36
36+9=45
So the answer is 45
  • 1
1+2=3?
3+3=6
?6+4=10?
10+5=15?
15+6=21?
21+7=28?
28+8=36?
36+9=45?

Your answer is 45
  • 2
1+2=3
3+3=6
6+4=10
10+5=15
15+6=21
21+7=28
28+8=36
36+9=45
So the answer is 45
  • 1
1+2=3
3+3=6
6+4=10
10+5=15
15+6=21
21+7=28
28+8=36
36+9=45
So the answer is 45
  • 2
1+2=3??
3+3=6?
?6+4=10??
10+5=15??
15+6=21??
21+7=28??
28+8=36??
36+9=45??

Your answer is 45
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   what is n 
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1+2=3
3+3=6
6+4=10
10+5=15
15+6=21
21+7=28
28+8=36
36+9=45
So the answer is 45
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45 IS THE ANSWER .
THANKS
 
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45 is Answer
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45 is the answer.
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45 is the answer.
  • 0
Please find this answer

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Lond
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Please find this answer

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What?????
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