Infosys
Maths Puzzle
Logical Reasoning
Number Series
2,7,14,32,58,?
Read Solution (Total 10)
-
- 132
1^2+1=2
2^2+3=7
3^2+5=14
5^2+7=32
7^2+9=58
11^2+11=132
- 8 years agoHelpfull: Yes(45) No(20)
- 119
difference between 2 and 7 is 5
difference between 7 and 14 is 7
difference between 14 and 32 is 18
difference between 32 and 58 is 26
relation between 5 and 18 is 5x3+3=18
relation between 7 and 26 is 7x3+5=26
now,relation between 18 and X is 18x3+7=61
difference betwwen X and 58 is 61
therefore,X-58=61
X=61+58=119
ANS-119
- 8 years agoHelpfull: Yes(16) No(8)
- that's a tricky question...
nth term=square of the primes + odd series
1=1^2+1; 7=2^2+3; 14=3^2+5; 32=5^2+7; 58=7^2+9;
So, the answer is 11^2+11=132. - 8 years agoHelpfull: Yes(11) No(4)
- 1^2+1=1
2^2+3=7
3^2+5=14
5^2+7=32
7^2+9=58
9^2+11=92 - 8 years agoHelpfull: Yes(5) No(13)
- Square of Prime Number + Odd Number
1^2+1=2
2^2+3=7
3^2+5=14
5^2+7=32
7^2+9=58
11^2+11=132
where 1,2,3,5,7,11 are prime numbers and 1,3,5,7,9,11 are odd numbers.
Note: Here 1 is taken as prime number though it is a special number. - 8 years agoHelpfull: Yes(5) No(5)
- 119......difference
- 8 years agoHelpfull: Yes(3) No(3)
- ans: 132
i.e square of prime no's+ odd series
2= 1^2+1
7=2^2+3
14=3^2+5
32=5^2+7
58= 7^2+9
so, 132= (11)^2+11; - 8 years agoHelpfull: Yes(1) No(0)
- Solution is 63
- 8 years agoHelpfull: Yes(0) No(4)
- series should not b dis as 1 is neither prime nor composite
- 8 years agoHelpfull: Yes(0) No(0)
- nth term=square of the primes + odd series
1=1^2+1; 7=2^2+3; 14=3^2+5; 32=5^2+7; 58=7^2+9;
So, the answer is 11^2+11=132. - 6 years agoHelpfull: Yes(0) No(0)
Infosys Other Question