Capgemini
Company
Logical Reasoning
Logical Sequences
Q. What is the next number of the following sequence
4, 18, 100, 294,...?
Read Solution (Total 8)
-
- 4=2^2*1
18=3^2*2
100=5^2*4
294=7^2*6
series is of form n^2*(n-1) where n is prime numbers
so next term is=11^2*10=1210
ans 1210 - 11 years agoHelpfull: Yes(106) No(9)
- 1210
consider prime numbers
2^3-2^2 is 4
3^3-3^2 is 18
5^3-5^2 is 100
7^3-7^2 is 294
11^3-11^2 is 1210 - 11 years agoHelpfull: Yes(23) No(1)
- Best solution is squareing the prime number then multiply it by previous number.
4=2^2*1
18=3^3*2
100=5^5*4
294=7^7*6
1210=11^11*10
Read more: http://www.m4maths.com/placement-puzzles.php?SOURCE=capgemini#ixzz2swL0v5Uu
Follow us: m4maths on Facebook - 10 years agoHelpfull: Yes(7) No(3)
- 2*1*3*3=18
2*2*5*5=100
2*3*7*7=294
2*4*9*9=648 - 9 years agoHelpfull: Yes(2) No(0)
- 4=(2*2)*1
18=(3*3)*2
100=(5*5)*4
?=(7*7)*6=294
series is followed by prime numbers i.e, (n*n)*(n-1) - 10 years agoHelpfull: Yes(1) No(0)
- series will be formed as n^2(n-1); whre n is prime no ......
4= 2^2*1;
18=3^2*2;
100= 5^2*4;
294=7^2*6;
1210=11^2*10;
so next digit will be 1210 - 9 years agoHelpfull: Yes(1) No(2)
- 2^2=4
3^2*2=18
5^2*4=100
7^2*6=294
ans 9^2*8=648
0r if we consider prme nos 11^2*8=968
- 8 years agoHelpfull: Yes(1) No(2)
- 4=( 2^2)*1;
18=(3^2)*2;
100=( 5^2)*4;
294=(7^2)*6;
1210=(11^2)*10;
so next digit will be 1210 - 8 years agoHelpfull: Yes(0) No(0)
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