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Maths Puzzle
31,41,61,91,?
Read Solution (Total 3)
-
- 131
Explanation :
To get nth number, add 10*(n-1) to the n-1 th number
So 5th number = 4th number + 10 * 4 = 91 + 40 = 131.
i.e 31
41 = 31 + 10 * 1
61 = 41 + 10 * 2
91 = 61 + 10 * 3
131 = 91 + 10 * 4
and so on... - 11 years agoHelpfull: Yes(1) No(0)
- 31,41,61,91,?
the sequence is increased by the difference of 10
(i.e)10,20,30,40
ans=131 - 11 years agoHelpfull: Yes(0) No(0)
- 31,31+10,41+20,61+30,91+40=131
- 11 years agoHelpfull: Yes(0) No(0)
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