TCS Company Logical Reasoning Missing Character

5,6,?,87,412,2185.
find the number that can be put in place of the question mark
(a)13
(b)14
(c)18
(d)20

Read Solution (Total 5)

correct ans is 20.
series in the form of 5*1+1^3=6,6*2+2^3=20,20*3+3^3=87,87*4+4^3=412,412*5+5^3=125.
so that ans is (d)
13 years agoHelpfull: Yes(58) No(3)

@Rashmi

20*3+3^3=87
10 years agoHelpfull: Yes(2) No(1)
14
13 years agoHelpfull: Yes(1) No(19)
how 20?
20*3 + 3^3=69 not 87...
can any post the correct solution please
11 years agoHelpfull: Yes(1) No(10)
Ans is 20
the sequence goes like this 5*1+cube(1)=6
6*2+cube(2)=20
20*3+cube(3) =87 and so the next terms
7 years agoHelpfull: Yes(1) No(0)

TCS Other Question

A cistern is two-third full of water. Pipe A can fill the remaining part in 12 minutes and pipe B in 8 minutes. Once the cistern is emptied, how much time will they take to fill it together completely?
(A) 12 minutes (B) 12.5 min (C) 14.4 min (D) 10.2 min (E) 14.66 min
Alok and Bhanu play the following min-max game.Given the expression
N=X-Y-Z
where X,Y, and Z are variables representing single digits(0 to 9).Alok would like to maximize N while Bhanu would like to minimize it.Towards this end,Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice(X,Y,Z).Alok then chooses the next value and Bhanu,the variable to substitute the value.Finally alok proposes the value for the remaining variable.Assuming both play to their optimal strategies,the value of N at the end of the game would be

a)9
b)4
c)2
d)-18