m4maths
Maths Puzzle
Find the sum of 2 missing numbers of the sequence
6, ?, 20, 15, ?, 1
Read Solution (Total 5)
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- 21
because sum of nth term and (n+3 )rd term is 21. - 12 years agoHelpfull: Yes(11) No(1)
- 6 ? 20 15 ? 1
2*3 3*4 4*5 (4*5)-5 (3*4)-5 (2*3)-5
6 12 20 15 7 1
Hence, sum of the two missing terms = 12+7 =19 - 12 years agoHelpfull: Yes(10) No(5)
- 6+20=26
26/2=13 so the 2nd term is 13
15+1=16
16/2=8 so the 5th term is 8
13+8=21 the sum of two missing numbers of the sequence is 21. - 12 years agoHelpfull: Yes(1) No(4)
- ans 7
y7ir6i fghtfh - 12 years agoHelpfull: Yes(0) No(6)
- from left to right
6+14=20
20+14=34
from right to left
1+14=15
15+14=29
so answer is 29,34.. - 11 years agoHelpfull: Yes(0) No(0)
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